Trust and transparency
About
What SleepPrism is, how the tools are designed, and the boundaries of the project.
Last reviewed: August 11, 2026
Our purpose
SleepPrism builds fast, transparent tools that help people plan sleep timing. We show the assumptions behind each estimate so people can understand what the result can and cannot mean.
What we make
Our tools perform simple planning calculations. They do not monitor sleep, detect sleep stages, diagnose a condition, or predict how rested someone will feel.
How we work
We prioritize useful answers, primary sources, accessible design, privacy by default, and clear corrections. Material health-related statements are reviewed before publication.
Independence
Commercial relationships do not determine the result produced by a calculator. Advertising or affiliate relationships will be disclosed where they appear.