About
Why SleepDepth exists
Most people know they should sleep better. Far fewer know why specific things work — and without the why, the habits don't stick.
Our mission
SleepDepth publishes evidence-based guides on sleep science, stress management, and mental wellness — written for real people, not medical professionals. Every article explains not just what to do, but why it works at a biological level.
We believe understanding the mechanism behind a habit makes it far more likely to stick. Knowing that a consistent wake time anchors your circadian rhythm is more motivating than just being told to "keep a regular schedule."
How we approach content
Every article on SleepDepth is grounded in peer-reviewed research. We cite specific studies where relevant, and we try to accurately represent what the evidence actually shows — including its limitations.
We distinguish between strong evidence (multiple RCTs, meta-analyses, consistent replication) and weaker evidence (single studies, mechanistic plausibility, anecdote). When something is uncertain or contested, we say so.
Our tools
The calculators and quizzes on SleepDepth are designed to help you understand your own patterns — not to diagnose anything. The Sleep Debt Calculator, Sleep Quality Quiz, and Stress Score are starting points for self-reflection, not medical assessments.
All tool responses are processed locally in your browser. We don't store your answers or any personally identifiable information.
Important limitations
SleepDepth is an informational resource, not a medical service. Nothing on this site is medical advice. If you're experiencing significant sleep disorders, anxiety, depression, or other health conditions, please work with a qualified healthcare professional.
See our Medical Disclaimer for the full details.
Contact
For questions, corrections, or content suggestions, reach us at [email protected].
If you spot an error in any of our articles — factual, scientific, or otherwise — please let us know. We take accuracy seriously and will correct mistakes promptly.