Privacy Policy

Last updated: February 15, 2024


Through its mobile digital therapeutic applications (“Apps”) for Participants (“Participant”, or “you”), Big Health Inc. and Big Health Ltd (collectively, “Big Health”, “we,” “us”, “our”) together acting as joint Data Controllers, owns, develops, operates, distributes and sells Apps designed to improve outcomes. We also operate websites including and all associated subdomains (the “Website”). This Privacy Policy covers how Big Health collects, receives, uses, retains, and discloses Personally Identifiable Information (“PII”) and Protected Health Information (“PHI”) on its Apps or Website. PII includes information about you that is personally identifying such as your name, email address, and phone number and which is not otherwise publicly available. PHI includes information relating to your health, for example medical history, test and laboratory results, insurance information and other data that a health care professional collects to identify an individual and determine appropriate care. PII and PHI may include other types of information depending on the legal definition that applies in your physical location. Only the legal definitions of PII and PHI that apply in your location will apply to you under this Privacy Policy. PII and PHI are referred to collectively in this Privacy Policy as “Personal Data.”

The Website and the Apps, including the data collection, storage, analysis and reporting tools, functions and related services of the foregoing, are collectively referred to in this Privacy Policy as the “System.”

Clinical Partners are hospitals, clinics, practices, researchers, universities or other medical groups or health care systems that have contracted with Big Health to permit use of the System (as defined below) by their respective Health Care Providers  and Participants; Health Care Providers are practitioners, patient advocates, coaches or other individuals who (as employees of or contractors to a Clinical Partner) provide health care or related services; Service Partners are service partners that have contracted with Big Health to facilitate the use of the System by their respective Health Care Providers and Participants; and Participants are individuals who use the System.  Healthcare Services are the furnishing of medicine, medical or surgical treatment, clinical and therapeutic services, the dispensing of drugs or medical devices or any other clinical services provided for treatment or prevention of disease, medical condition or disorder.

The App is available only to Participants who have been given the necessary password or similar credential to access the System. In order to receive access to and use the System, Participants must provide their consent to Big Health, as described below.  Big Health is committed to protecting and respecting your privacy and Personal Data about you. Big Health provides Participants with access to the System. Big Health collects, receives, uses, retains, and discloses Personal Data on its Apps or Websites. The purpose of this Privacy Policy (“Policy”) is to describe our practices regarding information that identifies, relates to, describes, is reasonably capable of   being associated with, or could reasonably be linked, directly or indirectly, with a particular individual Personal Data. This Privacy Policy sets out the basis on which any Personal Data we collect from you, or that you provide to us, will be processed by us and how you can get access to Personal Data about you. 

We are registered with the UK Information Commissioner’s Office as a Data Controller (Reg No. Z2141968) and have in place a comprehensive Company data protection policy and code of practice.

The terms “we”, “us”, “our” and “ours” when used in these terms mean Big Health, which includes any parent company, subsidiaries, branches or affiliates under common ownership or control of Big Health. The terms “you”, “your” and “yours” when used in these terms mean any Participant of the System. 

1. Agreement

By using the App or the System, and/or by providing Personal Data to Big Health, you accept and hereby expressly consent to our collection, use, retention, and disclosure of your Personal Data in accordance with the terms of this Privacy Policy. If you choose not to provide the requested information, you will not be able to access the System.

2. Information Collection and Use; Choice and Consent

Participants must be registered on the Product Candidate and have an active account in order to use the System. We may receive Personal Data about Participants from a Health Care Provider, Clinical, Service, or Channel Partner (defined below) in order to establish an account and for you to be able to register for and use the Service and identify you as an authorized Participant. Big Health may collect Personal Data when Participants are registered through the Website and confirmed within the App.

It is always your choice whether or not to provide us with Personal Data, which we may share with the Health Care Provider, Clinical or Service Partner. Big Health uses Personal Data and information you provide to us through the App and the System:

  1. To provide you with the System;
  2. To communicate with you, for example to reset password or reminders;
  3. To communicate with your Health Care Providers, Service and Clinical Partners, as applicable, to review the functionality and effectiveness the System;
  4. For health care operations – we may compile information and Analytics about you, your use of the App and share those with our Clinical and Service Partners;
  5. To create Participant profiles;
  6. To create analytical information about the effectiveness of the System and overall improvement thereof; and
  7. To reply to your request for information or comments.

3. What Personal Data Do We Collect and for What Purposes?

We may collect the following categories of information that may, alone or in combination with other information, constitute Personal Data:

3.1 Information that You Provide to Us:

3.1.1 Identifiers and Other Information

We collect and use information like your name, email address, and phone number.

We also collect your age, date of birth, and gender.

You may also be presented the opportunity to provide us with information such as race and ethnicity - this data is not required to be provided to use the System.

We use the information that you provide for the following purposes:

  • To provide you with any information that you request from us;
  • To communicate with you; You may make changes to the format and frequency of these reminders, or cancel these reminders and/or notifications by logging into your Sleepio account on the Website, and/or by accessing the native notification settings on your mobile device when using the App, or by utilizing the unsubscribe function included in an email to you;
  • To notify you about changes to the System;
  • To enable us to issue a notice, administrative, or corrective action to you in relation to the System, if required;
  • To assist our interpretation of your sleep, as your sleep patterns can vary based on age and/or gender;
  • To protect against, identify and prevent fraud and other unlawful activity, claims and other liabilities;
  • To comply with applicable legal requirements, industry standards, and our own policies; and
  • To protect the System, our intellectual property rights, and other rights.

3.1.2 Health Information That You Provide

Subject to your consent, we may collect the following information about your health (“Health Information”):

  • Information about your sleep (including, but not limited to, the time you spend in bed and time you spend asleep, number of interruptions in your sleep, and a self-reported evaluation of your sleep quality);
  • Information about pre-existing medical conditions; and
  • General information about your mental and physical wellbeing.

We use the Health Information that you provide for the following purposes:

  • To provide a personalized sleep improvement program (and to support the delivery of that program);
  • To determine eligibility for the System;
  • To ensure the safety and efficacy of the System; and
  • To evaluate progress against your self-defined goals.

3.1.3 Health Information That Your Employer and Service Partner Provide

Subject to our contractual provisions with your employer or Service Partner (where applicable, in either case), we may receive the following information about you:

  • Information about current medications;
  • General information about your mental and physical wellbeing; and
  • Contact information such as name, email, phone number and mailing address.

We use the information that your employer or Service Partner provides for the following purposes:

  • To determine if you are eligible for Sleepio; and
  • To target and contact you if we determine Sleepio may be beneficial for you.
  • You should reach out to your employer and Service Partner if you have any questions about the data shared with Big Health.

3.2 Automatically Collected Information

When you use the App or the System, we collect certain information relating to your browser or device type, the time and date you use the System, operating system, identification of Website or App page views, use of particular System features, geographic location and other statistical information relating to your use of the App or the System. This information is referred to in this Privacy Policy as “Analytics.” We use Analytics to develop, improve, extend and test the System (and underlying technology platforms) and to market and promote Big Health and the System.  Analytics collects the following information that may, alone or in combination with other information, constitute Personal Data:

3.2.1 Electronic identifiers

We may collect information about the devices you use to access the System, including (but not limited to) IP address, mobile device UDID and IMEI numbers, operating system, browser type, and screen size.

3.2.2 Cookies and Other Software

We may store cookies (small text files managed by your web browser) on your computer in order to improve your experience with the System. Example uses of these cookies include recognizing you when you return to the System, maintaining data you've entered across multiple sessions, and storing information about your personal preferences. We may also supplement the information we collect from you with information we receive from third parties, including third parties that have placed their own cookies on your device(s).

Cookies may be used to market or promote Big Health and the System.  Certain cookies will remember that you have visited our Websites and enable us to serve you advertising when you are visiting other sites (“Retargeting Cookies”).  We use Retargeting Cookies so that we may serve advertising to you after you have left our Website.

You may refuse to accept cookies by changing the settings on your device to prevent cookies from being set. However, if you select this setting you may be unable to access certain parts of the System. Unless you have adjusted your browser setting so that it will refuse cookies, our system may issue cookies when you visit the System.

Our software may automatically generate a confirmation when you open an email from us, or click on a link in an email, if your computer supports this type of software. When you receive an email from us, you can opt out of receiving further emails by following the included instructions to unsubscribe. However, by opting out of further email communications after you sign up, you may limit program reminders and other valuable program content and components.

3.2.3 System Usage Data

The software used in the System may also collect milestone data (e.g., number of sessions you complete or how many diaries you fill out).

We use the automatically collected information for the following purposes:

  • To operate and improve the System, including through internal analytics and reporting to help us understand how you use the System, so that we can present content in the best manner;
  • To provide you with customer support, for system administration, to tailor your experience of the System, to report aggregate information internally, and to assist communication (e.g., push notifications);
  • To allow you to earn incentives and rewards (if those are offered as part of your wellness program);
  • To help us make emails more interesting and helpful;
  • To protect against, identify and prevent fraud and other unlawful activity, claims and other liabilities;
  • To comply with applicable legal requirements, industry standards, and our own policies; and
  • To protect the System, our intellectual property rights, and other rights.

3.3 Non-identifiable information

We may use Personal Data about you in creating aggregated data sets shared with our Clinical Partners. Once aggregated, the information no longer constitutes Personal Data, and such aggregated data would be used for supporting generalized statements (e.g., "men under the age of 30 have the worst sleeping habits in the UK").

4. What is Our Legal Basis for Processing Personal Data?

We will process Personal Data only if and to the extent that at least one of the following legal bases of processing applies:

  • Legitimate interest: We process the information that you provide as well as automatically collected information when the processing is necessary for the purposes of the legitimate interests pursued by Big Health and when these interests are not outweighed by your privacy interests, including, but not limited to, (i) better understanding the use of our System and improvements thereto; (ii) updating and improving our System to optimize the overall Participant experience; (iii) understanding our Participants and target markets in order to increase operational efficiency and develop short- and long-term improvement strategies; (iv) keeping Participants informed about our System and in improving your experience (where consent is not required by law); and (v) maintaining the integrity and safety of our System and our Participants;
  • Performance of a contract: We process the information that you provide when the processing is necessary for the performance of a contract, and specifically the Terms, to which you are a party;
  • Consent: We process Health Information when you have given consent to the processing of Health Information about you for the purposes described above. This consent can be withdrawn at any time.

5. When do we Disclose Personal Data?

Big Health is required to maintain the confidentiality and integrity of Personal Data to provide Participants with notice of its legal duties and privacy practices with respect to PHI, and to notify affected individuals following a breach of unsecured PHI. As such, we have policies, procedures, and other safeguards to help protect it from improper use and disclosure.

We follow a Minimum Necessary Access Policy so any required disclosure of Personal Data about you is minimized. The following categories describe the ways in which we disclose Personal Data to persons and entities outside of Big Health. All permitted disclosures will fall within one of the following categories. In addition, there are some uses and disclosures that may require your specific authorization.

Your Personal Data may be shared with Health Care Providers, Clinical and Service Partners. We may disclose your Personal Data and other data to third party vendors who help us operate the Website. These third parties are contractually obligated to maintain the confidentiality of your Personal Data consistent with the terms of this Privacy Policy and to comply with the applicable data protection laws.

Except as explicitly described herein, Big Health does not disclose Personal Data to third parties for any purpose materially different from the purpose(s) for which it was originally collected.

5.1 Disclosure at Your Request

A separate authorization would be required for any use and disclosures of Personal Data not described in this Privacy Policy. We may disclose Personal Data relating to your use of the System when requested by you. This disclosure at your request may require written authorization by you.

5.2 Payment

Payment information is stored by third-party vendors who help us deliver the services associated with the System and we are committed to ensuring that all such vendors meet our security and data protection standards. As such, we may use and disclose Personal Data about you to obtain payment for services that we provide to you. For example, we may make disclosures to claim and obtain payment from a Service Provider (e.g., your health insurer, HMO, or other company that arranges or pays the cost of some or all of your use of the System or to verify that your Service Provider will pay for health care.

5.3 Services and Operations

We may disclose Personal Data about you in connection with providing services. To the extent you receive access to the System through your employer or your health plan, our services may include supporting, and sharing information with, your employer’s wellness program, your health plan or third-party administrator or other similar programs. Possible information to be shared may include participation data (i.e., the fact that you used Sleepio), milestone data (e.g., number of sessions you complete or how many diaries you fill out) to allow you to earn incentives and rewards (if those are offered as part of your wellness program), as well as data from your initial sleep questionnaire.

5.4 Third-Party Service Providers

In connection with the System, we may use third-party service providers. Examples of third-party services providers include Service Partners, accounting services, server hosting and email delivery providers, business associates, software analytics vendors and other business partners and reputable companies in the industry who subcontract to us or to those of your employer as our corporate customers, where permitted by law. We may disclose Personal Data about you to our third- party services providers so that they can perform System related services. We may collect data from third-party service providers in order to ensure our System is current and as up to date as possible.  For example, we may use open web services and APIs to complete and update the information we have about Participants and enrich it, thus allowing us to enhance, optimize and enrich the System. We collect information from the following third-party sources: (i) third parties who license, sell or otherwise provide data they have collected; or (ii) information from publicly available sources, such as via the Internet and social networks, including through public or licensed APIs. To protect Personal Data about you, we require appropriate contracts or written agreements be in place that safeguard Personal Data about you and limit the use of Personal Data for purposes of providing the services and for no other purpose.

5.5 Links to Other sites; Third Party Apps; Transactions with Third Parties

The Websites may contain links to other sites that are not owned or controlled by Big Health. Please be aware that we are not responsible for the privacy practices of these other sites. We encourage you to review the privacy policies and statements of other sites to understand their information practices. Our Privacy Policy applies only to information collected by our Website and Services.

You may be able to obtain an App, access the System and/or communicate with the System from, and you may be able to link or communicate from the System to, applications, devices, distribution platforms and websites owned and operated by Service Partners and/or by Apple, Google or other third-party distribution platform operators (“Channel Partners”). These other applications, devices, platforms and websites belong to third parties and are not operated or controlled by Big Health. Our Privacy Policy does not apply to any information collected, received, used, processed, transferred or disclosed by such third parties. Additional or different terms and conditions (including without limitation, privacy and security practices) apply when you access and use third party applications, devices, platforms and websites, which are not the responsibility of Big Health.

Please note that if you access our System in England (United Kingdom) using your National Health Service (“NHS”) login details, the identity verification services are managed by NHS England. NHS England is the controller for any personal information you provided to NHS England to get an NHS login account and verify your identity, and uses that personal information solely for that single purpose. For this personal information, our role is a “processor” only and we must act under the instructions provided by NHS England (as the “controller”) when verifying your identity. NHS login’s Privacy Notice and Terms and Conditions are found here: This restriction does not apply to the personal information you provide to us separately.

Big Health is not responsible for and will not be a party to any transactions between you and a third-party provider of products, information or services. Big Health does not monitor such transactions or ensure the confidentiality of your Personal Data, including credit card information, for any third-party transaction. Any separate charges or obligations you incur in your dealings with these third parties linked to Big Health’s Site are solely your responsibility.

5.6 Public Access to Community Posts

Most of the Sleepio Community isn’t shared publicly and is only visible to other logged-in members. However, there is a subset of ‘General chat’ discussions which may appear in public searches. The profile messages appearing on the Community homepage at any one time may also be visible to non-members. Whilst we’ve taken care to anonymize your username in such cases (as “Sleepio member”), we’re not able to change the content of your comment or message. For this reason, we recommend that you exclude identifying information if you would like to remain anonymous while using the Community. You may want to choose a username that is unique to your Sleepio account and which wouldn’t identify you in any context.

5.7 Threat to Health or Safety

We may use and disclose Personal Data about you when necessary to prevent a serious threat to your health and safety or the health and safety of the public or another person. Any disclosure, however, would only be to someone able to help prevent the threat.

5.8 As Required by Law

We will disclose your information in response to valid legal process, for example, in response to a court order, a subpoena or other legal request for information, and/or to comply with applicable legal and regulatory reporting requirements. We also may disclose your information in response to a law enforcement agency’s request or other request for information from the U.S. or other government entities, or where we believe it is necessary to investigate, prevent, or take action regarding illegal activities, suspected fraud, situations involving potential threats to the physical safety of any person, or to verify or enforce compliance with the policies governing our products and/or services and with applicable laws, or as otherwise required or permitted by law or consistent with legal requirements.

5.9 Personal Representatives or Persons Involved with Your Care

We must use and disclose Health Information to anyone who has the legal right to act for you (your personal representative) in order to administer your rights. We may also use or disclose Health Information to a person involved in your care or who helps pay for your care, such as a family member, when you are incapacitated or in an emergency, or when you agree or fail to object when given the opportunity. If you are unavailable or unable to object, we will use our best judgment to decide if the disclosure is in your best interests. Special rules apply regarding when we may disclose Health Information to family members and others involved in a deceased individual's care. We may disclose Health Information to any persons involved, prior to the death, in the care or payment for care of a deceased individual, unless we are aware that doing so would be inconsistent with a preference previously expressed by the deceased.

5.10 Transfer of Business Assets

In the event that we sell or buy any business or assets, we may disclose Personal Data to the prospective seller or buyer of such business or assets. If Big Health or substantially all of its assets are acquired by a third party, Personal Data about you may be one of the transferred assets.

6. How Do We Store and Transfer Personal Data?

Big Health uses firewalls, and encrypts data at rest and in transit to protect your Personal Data from unauthorized access, disclosure, alteration, or destruction. All Personal Data is transmitted, stored, and processed in a secure environment in accordance with applicable laws, based on your residency, including Privacy and Security Rules under the Health Insurance Portability and Accountability Act of 1996 (“HIPAA”), the Data Protection Act, or the General Data Protection Regulation and related guidance. However, no method of transmission over the Internet, or method of electronic storage, is 100% secure. Therefore, we cannot guarantee its security. We will retain Personal Data for as long as necessary to provide our services, but in no case later than six (6) years following termination of your participation with an App or withdrawal of your consent. We will retain and use Personal Data as necessary to comply with our legal obligations, resolve disputes, and enforce our agreements.

Personal Data is stored in encrypted form on secure servers located in the US, which are owned and operated by Amazon Web Services (AWS). AWS are industry leaders in the provision of hosting services and take security very seriously - you can find out more about their security policies and processes in their Security Whitepapers, found here: new-window.

We have signed European Commission approved Standard Contractual Clauses (also called 'model clauses') with our hosting providers in the US, to ensure that they adequately protect the data of EU/UK data subjects that they store for us. All passwords are stored in encrypted form and all sensitive traffic is transmitted securely via SSL by default. Personal Data about you may be transferred to, and stored at, other destinations inside the US, UK, or European Economic Area ("EEA") by or to staff who work for Big Health or one of our suppliers. Such staff may be engaged in, among other things, the provision of support services. Additionally, data can be transferred between constituent companies (e.g., Big Health Ltd and Big Health Inc.), which may include transfers into and/or out of the EEA.

7. Your Rights

Participants of the System have certain specific rights with regard to their Personal Data. We will respond to your request(s) in accordance with the law that applies to you. Your Personal Data which we processed prior to your request may not be deleted from our Website or System records but will be blocked from further processing without your permission. A request to withdraw consent may not apply to information collected by tracking technologies or used internally to recognize you and/or facilitate your visits to the Websites, or information we may keep to comply with legal requirements. A Health Care Provider may access, change, or modify your information, according to the privacy policy of that Clinical Partner. If you wish to access, amend, or modify your information in any way, please discuss this change with your Health Care Provider.

7.1 Right to Access

A Participant has the right to view all Personal Data that Big Health has collected about them. In order to receive this information, please contact the Security, Privacy, and Compliance Officer. The first copy of this information is provided free of charge, and in a portable / common electronic form (e.g., CSV file).

7.2 Right to Correct

A Participant has the right to ensure that the Personal Data we have stored is accurate. In most cases, the system allows you to directly modify Personal Data about you. However, if there is incorrect Personal Data within our system that you are not able to change, please contact us at and we will work directly with you to update the Personal Data.

7.3 Right to Deletion

A Participant of the System has the right to request deletion of all data within the system. To request your data be deleted, please contact the Security, Privacy, and Compliance Officer. In most cases, this request will be completed within 30 days. If circumstances require a delay to this deletion, Big Health will notify you directly explaining the reason for the delay. Note also that in some cases, there may be a legal requirement to hold on to your data. Again, Big Health will notify you directly if this is the case.

7.4 Right to Withdraw Consent

A Participant of the System has the right to withdraw their consent relating to our processing of Personal Data at any time by contacting us at Please note that without consent to process Health Information, we will be unable to provide the System to you.

7.5 Right to Object

Under certain circumstances, you have the right to object at any time to our processing of your personal information for reasons relating to your particular situation (e.g., direct marketing).

7.6 Right to Restrict Processing and/or Sharing

Under certain circumstances, you may have the right to ask us to restrict processing of your personal information and/or sharing of your personal information to third parties.

7.7 Right to Data Portability

Under certain circumstances, you may request that your personal information that you provide to us be handled without hindrance in a certain format (structured, commonly used, machine-readable format) and may have the right to transfer it to another company or organization.

8. Children

Our System is intended to be made available only to individuals who have been specifically identified for onboarding and use of the System as indicated by the App’s indication. If you believe a child who is under the age of 13 has used the Service and entered personal health information, please contact us using one of the options provided herein.

9. Your California Privacy Rights; California Do Not Track Disclosures

If you are a California resident, California Civil Code Section 1798.83 permits you to request information regarding the disclosure of your personal information, as defined in California Civil Code Section 1798.83(e)(7), by Big Health or its subsidiaries to a third party for the third party’s direct marketing purposes. Upon your request, Big Health will provide (i) the types of personal information Big Health shared with third parties for the third parties’ direct marketing purposes during the immediately preceding calendar year; and (ii) the identities of the companies with which we shared the information. You may make this request once per calendar year. 

Your browser may offer you a “Do Not Track” option, which allows you to signal to operators of websites and web applications and services (including behavioral advertising services) that you do not wish such operators to track certain of your online activities, over time and across different websites. We do not honor “Do Not Track” signals. To find out more about “Do Not Track,” you can visit

10. Concerns or Complaints

Big Health commits to resolving complaints about your privacy and our collection or use of your Personal Data. If you believe that any of your rights with respect to your or others’ Personal Data have been violated by us, our employees or agents, or you disagree with any action Big Health has taken with regard to your Personal Data, you may file a complaint with Big Health by emailing us at

11. Amending this Policy

These terms may change at any time upon written notice to you.

Questions relating to revisions to this Policy may be addressed to and

12. Who Can You Contact?

12.1 Security, Privacy, and Compliance Officer

Big Health, Inc.
Attn: Security Official / Head of Information Security
548 Market St 
PMB 72279
San Francisco, CA 94104


12.2 HIPAA

If we are subject to the HIPAA, you may also file a complaint under HIPAA by contacting the Secretary of the U.S. Department of Health and Human Services, Office of Civil Rights ("OCR"). Under no circumstances will we take any retaliation against you for filing a complaint to the OCR.

12.3 EU Representative

Our EU Representative is OBSECOM, found at Opens in a new window. Participants in the European Union can contact our Representative directly with any issues or questions by visiting Opens in a new window.

13. Terms of Service

Please also visit the Terms of Service, available here:, establishing the use, disclaimers, and limitations of liability governing the use of our App and the System.