Terms of Use
Last updated: March 12, 2026
1. Acceptance of Terms
By accessing and using Sleep Calculator & Sleep Music, you agree to be bound by these Terms of Use. If you do not agree, please do not use the site.
2. Service Description
Sleep Calculator & Sleep Music provides sleep cycle calculators, ambient sleep sound mixing, nap planners, guided breathing exercises, caffeine metabolism trackers, sleep quality tracking, and age- and gender-specific sleep guides. All tools run entirely in your browser — no accounts, no data collection. These tools are for informational and educational purposes only.
3. Not Medical Advice
The information and calculations provided by Sleep Calculator & Sleep Music are based on general sleep science principles and are not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider for sleep disorders or health concerns.
4. Accuracy
Sleep cycle calculations are based on average 90-minute cycles and a 15-minute sleep onset estimate. Individual results may vary. We make no guarantees about the accuracy or suitability of results for any particular individual.
5. Intellectual Property
All content, design, audio assets, and code on Sleep Calculator & Sleep Music are protected by copyright. You may use the tools for personal, non-commercial purposes. Reproduction or redistribution of site content without permission is prohibited.
6. Limitation of Liability
Sleep Calculator & Sleep Music is provided "as is" without warranties of any kind. We are not liable for any damages arising from the use of our tools or reliance on the information provided.
7. Changes to Terms
We reserve the right to modify these terms at any time. Continued use of the site after changes constitutes acceptance of the updated terms.