SleepMethod Terms of Service

Effective date: 3 September 2026

Last updated: 9 September 2026

These Terms govern your use of the SleepMethod website, iOS application and related services. By downloading, accessing or using SleepMethod, you agree to these Terms. If you do not agree, do not use the Service.

1. About SleepMethod

SleepMethod is a behavioural sleep wellness service provided by Casimir Simeon Houweling in the Netherlands.

In these Terms, “SleepMethod”, “we”, “us” and “our” refer to Casimir Simeon Houweling. “Service” means the SleepMethod website, iOS app, content, accounts, paid features and related services.

Questions, complaints and support requests can be sent to support@sleepmethod.app.

2. Eligibility

You must be at least 16 years old to use SleepMethod.

If you are under the age of legal majority where you live, you may use SleepMethod only with the agreement of your parent or legal guardian. Your parent or legal guardian should review these Terms with you and is responsible for your use of the Service to the extent required by applicable law.

Information you provide must be accurate. You must not impersonate another person or create an account for someone else without authorisation.

3. What SleepMethod provides

SleepMethod can help you:

• explore patterns related to circadian rhythm, sleep pressure and stress regulation;
• receive a rule-based personal sleep plan;
• build and maintain sleep-supporting habits;
• complete check-ins and review progress;
• configure a Wake Anchor and timing window;
• use educational content, settling exercises and Wind Down routines; and
• choose optional local reminders.

Any status, recommendation or plan is an estimate based on information you provide and predefined rules. It is not a physiological measurement and does not measure melatonin, cortisol, adenosine or another biological signal.

Features may evolve, be replaced or be removed. We will communicate material changes affecting paid features where required by law.

4. Premium

SleepMethod Premium provides access to the paid experience displayed in the app. At a high level, this may include the complete personal sleep plan, daily habit guidance, check-ins, progress features, Wind Down tools, settling exercises, plan updates and cloud backup.

The exact features available at the time of purchase are shown in the app. Features may evolve as the Service is improved, provided that mandatory consumer rights and remedies remain available.

5. Wellness and medical limitations

5.1 Not medical care

SleepMethod is a general wellness and educational product. It is not a medical device, healthcare provider, diagnostic service, treatment or emergency service.

SleepMethod does not diagnose, prevent, cure or treat insomnia, sleep apnoea, a mental health condition or another medical condition. We do not guarantee improved sleep or any particular health outcome.

5.2 When to seek professional help

Contact a qualified healthcare professional if sleep problems persist, you suspect an underlying condition or you are concerned about your sleep, wellbeing or health.

Seek urgent local assistance if you believe there is an immediate safety or health risk.

Do not use breathing, meditation or relaxation exercises while driving, operating equipment or doing anything requiring your full attention. Do not drive or perform another unsafe activity when you feel at risk of falling asleep.

5.3 Your judgement

You decide whether a recommendation is appropriate for your circumstances. Stop an exercise if it causes significant discomfort, distress, dizziness, breathing difficulty or another concerning response.

Advice from a qualified healthcare professional takes priority over general information provided by SleepMethod.

6. Accounts and Sign in with Apple

SleepMethod uses Sign in with Apple. An account connects your personal SleepMethod data to secure cloud backup and restoration and helps associate access to your paid plan across supported devices.

You are responsible for protecting access to your Apple account and device. Contact us promptly if you believe someone has accessed your SleepMethod account without permission.

Signing in allows selected local SleepMethod data to be backed up through Supabase. Sign in with Apple, Supabase and RevenueCat are used as described in the Privacy Policy.

7. Personal plans and recommendations

SleepMethod personalises general wellness content using your answers, preferences, completed habits, saved routines and check-ins.

Personalisation uses predefined, rule-based logic. It is not a medical diagnosis, professional assessment or individual medical treatment. It does not make legal or similarly significant decisions about you.

Recommendations are not prescriptions, promises or guarantees. You remain responsible for deciding whether and how to follow them.

8. AI-assisted content

Some prerecorded meditation scripts, spoken voices, soundscapes or other static content may have been created, narrated or produced with assistance from artificial intelligence.

AI-assisted content is general wellness content. It is not a live conversation with an AI therapist, human therapist or healthcare professional and must not be treated as individual medical or mental-health advice.

SleepMethod does not send personal sleep information to an AI provider. AI-assisted material may still contain limitations or errors. Stop using an exercise if it causes discomfort or distress.

9. Optional reminders

You choose whether to enable reminders and select their timing. Notification permission is controlled through iOS. Reminders can be paused or disabled in SleepMethod or through device settings.

Reminder delivery is scheduled locally on your device. SleepMethod does not use reminders for marketing push notifications. Still awake? is an optional in-app tip and never creates a scheduled notification.

Notification previews may be visible on a locked device depending on your SleepMethod and iOS settings. Use private previews or device notification controls if you want less descriptive text.

10. Subscriptions and purchases

10.1 Available subscriptions

SleepMethod offers:

• SleepMethod Premium Monthly; and
• SleepMethod Premium Annual.

Prices, currencies, taxes and the exact billing period are displayed by Apple before purchase. SleepMethod does not sell subscriptions directly through SleepMethod.app.

10.2 Payment and entitlement

Purchases are processed by Apple through the App Store. RevenueCat is used to retrieve subscription products, determine entitlement status and provide Premium access.

SleepMethod does not receive your full payment-card details from Apple.

If you are not legally able to authorise a purchase independently, a parent or legal guardian must authorise the purchase. All App Store purchases remain subject to Apple’s purchase confirmation, parental controls and applicable terms.

10.3 Trials and introductory offers

A seven-day introductory trial may be available for the monthly or annual subscription only when it is displayed at checkout and Apple confirms that your Apple account is eligible.

A trial is not guaranteed. If a trial applies, Apple’s purchase sheet shows the trial, price after the trial and renewal terms before you confirm.

Unless cancelled before the applicable deadline shown by Apple, the trial converts to the selected paid subscription.

10.4 Automatic renewal

Monthly and annual subscriptions renew automatically unless cancelled through Apple. Apple charges the payment method linked to your Apple account according to its applicable terms.

You can manage or cancel your subscription through your Apple subscription settings. Cancellation stops future renewals. Premium access normally continues until the end of the paid or trial period shown by Apple.

Deleting SleepMethod, deleting your SleepMethod account, signing out or revoking Sign in with Apple does not cancel the subscription.

10.5 Restore Purchases

Restore Purchases is available in the app. It asks Apple and RevenueCat to restore an eligible active entitlement associated with your Apple account. Restoration requires a network connection and an eligible purchase.

10.6 Expiry

When a subscription expires, access to Premium features ends unless you renew or another valid entitlement applies. Your account and backed-up data are not automatically deleted when Premium expires. You can delete them through Delete Account and Data.

10.7 Refunds and consumer rights

Apple handles App Store billing and refund requests under its applicable rules. You can request a refund from Apple where available.

Nothing in these Terms removes mandatory consumer rights. Any price, product and offer information shown in Apple’s purchase flow forms part of your purchase agreement.

11. Account deletion

Settings includes Delete Account and Data. The implemented deletion flow requires fresh Apple authentication and, after successful confirmation:

• revokes the relevant Apple authorisation;
• deletes associated SleepMethod cloud data;
• deletes the Supabase authentication account;
• clears local SleepMethod product data and sync metadata; and
• removes scheduled and presented SleepMethod notifications.

Account deletion is permanent and cannot be undone.

Deleting the account does not cancel an Apple subscription. You must separately cancel the subscription through Apple to stop future renewal.

Revoking Sign in with Apple access through Apple settings does not itself delete your SleepMethod account. You may also contact support@sleepmethod.app about deletion or another privacy request.

12. Signing out

Signing out preserves the cloud backup and account. It removes local SleepMethod product data and scheduled or presented notifications from that device.

Signing out does not cancel the subscription. You can sign in again with the same Apple account to restore an available cloud backup and eligible entitlement.

13. TestFlight and pre-release versions

Public production use is separate from optional TestFlight, beta, preview or other pre-release participation.

A pre-release version may be incomplete, change without notice and contain errors. Testing access may be limited, suspended or withdrawn. Do not rely on a pre-release version for medical, emergency or safety-critical purposes.

If you voluntarily provide feedback, you allow SleepMethod to use it to improve the Service without an obligation to compensate you. This does not change the protections applying to personal information in that feedback.

14. Licence and intellectual property

SleepMethod and its licensors own the Service, including its software, design, text, graphics, audio, trademarks and other content, except where expressly stated otherwise.

We grant you a personal, limited, revocable, non-exclusive and non-transferable licence to use the Service on Apple-branded products you own or control, as permitted by Apple’s Usage Rules, for your own lawful, non-commercial purposes.

Unless applicable law expressly permits it, you may not:

• copy, sell, rent, sublicense, redistribute or commercially exploit the Service or its content;
• reverse engineer, decompile, disassemble or attempt to derive its source code;
• bypass security measures, subscription controls or technical restrictions;
• remove copyright, trademark or ownership notices; or
• use SleepMethod content to create a competing product or training dataset without written permission.

15. Acceptable use

You must not:

• use the Service unlawfully or to harm another person;
• interfere with the Service, its infrastructure or another customer’s access;
• introduce malware, abusive traffic or other harmful code;
• use unauthorised automated systems to scrape or extract content;
• attempt unauthorised access to an account, system or data;
• infringe intellectual-property, privacy or other legal rights;
• misrepresent SleepMethod content as medical advice; or
• use the Service in a manner creating an unreasonable safety or security risk.

16. Your information and feedback

SleepMethod does not provide public posts, messaging or user-generated social content.

You retain ownership of private answers, preferences and other information you enter. You allow us to process that information only as needed to operate, secure, personalise and support the Service as explained in the Privacy Policy.

Feedback may be used to improve SleepMethod without an obligation to compensate you. This does not transfer ownership of personal information contained in feedback.

17. Privacy

The Privacy Policy explains what personal information is processed, why it is used, the legal bases relied upon, providers, retention criteria and your rights.

The Privacy Policy is separate from these Terms. Accepting these Terms does not constitute consent where the law requires separate consent.

18. Third-party services

SleepMethod relies on:

• Apple for authentication, App Store distribution and payment processing;
• Supabase for authentication, cloud backup, restoration and account deletion;
• RevenueCat for subscription and entitlement management; and
• Vercel for website hosting.

Third parties may apply their own terms and privacy notices. You must comply with applicable third-party terms when using the Service.

We remain responsible for SleepMethod and our own legal obligations. We are not responsible for third-party services outside our reasonable control, except where applicable law provides otherwise.

19. Availability, maintenance and updates

We aim to keep the Service available and reliable but do not promise uninterrupted or error-free operation.

Access may be affected by maintenance, updates, device compatibility, internet access, third-party systems, security incidents or events outside our reasonable control.

You may need to install updates to continue using the Service securely. We will provide updates and remedies required by applicable law.

20. Suspension and termination

You may stop using the Service at any time and may delete your account as described above.

We may restrict or suspend access where reasonably necessary to protect customers or the Service, address suspected fraud, investigate a security incident, comply with law or respond to a serious or repeated breach of these Terms.

Where appropriate and legally required, we will provide notice and a reasonable opportunity to correct the issue.

We may discontinue the Service. If discontinuation materially affects a prepaid service, we will provide the notice, continued access, refund or another remedy required by law.

Provisions that by their nature should continue after termination remain effective.

21. Service standards and liability

We will provide the Service with the care and skill required by applicable law.

General wellness guidance cannot account for every person, condition, device, environment or circumstance. Subject to our legal obligations, the Service is provided on an “as available” basis.

Nothing in these Terms excludes or limits liability where doing so would be unlawful, including liability for fraud or fraudulent misrepresentation. We do not exclude any statutory right, warranty or guarantee that cannot legally be excluded.

If you use the Service as a consumer, we are responsible for losses that are a foreseeable result of our breach of these Terms or failure to use legally required care and skill.

We are not responsible for losses that were not reasonably foreseeable, business losses resulting from personal consumer use, loss caused by failure to follow reasonable instructions, or loss caused by incompatible, unsecured or improperly maintained equipment.

Mandatory consumer rights and remedies remain unaffected.

22. Governing law and disputes

These Terms are governed by Dutch law.

If you are a consumer, this choice does not remove mandatory protections provided by the law of your usual country of residence.

Please contact support@sleepmethod.app first so we can try to resolve a concern informally. You may bring a dispute before any court having jurisdiction under applicable consumer law.

23. Changes to these Terms

We may update these Terms to reflect changes to the Service, law, security requirements, business or third-party services.

We will provide reasonable advance notice of material changes where required. Changes will not retroactively reduce rights connected to an existing purchase unless legally permitted and appropriately agreed.

24. General terms

If one provision is found unenforceable, the remaining provisions continue to apply. A failure to enforce a provision does not waive it.

We may transfer these Terms as part of a merger, acquisition, restructuring or sale of the Service, provided this does not reduce mandatory consumer rights.

You may not transfer your rights or obligations under these Terms without our permission, except where applicable law allows it.

These Terms, the Privacy Policy, applicable checkout information and any additional terms expressly presented for a feature form the agreement relating to your use of the Service.

25. Apple App Store terms

If you obtain SleepMethod through the Apple App Store:

1. These Terms are between you and SleepMethod, not Apple. SleepMethod, not Apple, is responsible for the app and its content.
2. The licence is limited to a non-transferable right to use SleepMethod on Apple-branded products you own or control, subject to Apple’s Usage Rules, including any permitted Family Sharing or volume-purchase use.
3. Apple has no obligation to provide maintenance or support for SleepMethod.
4. Where an applicable warranty cannot legally be excluded and SleepMethod fails to conform to it, you may notify Apple. Apple may refund the purchase price paid for the app, if any. To the maximum extent permitted by law, Apple has no other warranty obligation concerning SleepMethod.
5. SleepMethod is responsible for addressing claims concerning the app, including product-liability, legal-compliance, consumer-protection and privacy claims.
6. SleepMethod is responsible for investigating claims that the app infringes third-party intellectual-property rights.
7. You represent that you are not located in a country subject to a United States Government embargo or designated as supporting terrorism, and that you are not listed on a United States Government prohibited or restricted-party list.
8. You must comply with applicable third-party terms when using SleepMethod.
9. Apple and its subsidiaries are third-party beneficiaries of this section. After you accept these Terms, Apple may enforce this section against you.

These Terms supplement Apple’s applicable terms and are not intended to conflict with Apple’s Standard Licensed Application End User License Agreement or Usage Rules. Mandatory rights under applicable law remain unaffected.

26. Contact

Questions, complaints, claims and legal notices may be sent to:

SleepMethod

Netherlands

Email: support@sleepmethod.app