Free Tools
Tools to help you sleep
Real, interactive tools — not just articles. Grounded in sleep science, free forever, no signup required.
Circadian Rhythm Calculator
Enter your wake time. Get a personalized daily schedule — sunlight, caffeine cutoff, exercise, last meal, screens off, melatonin, bedtime — with the science behind every timing rule.
Build my schedule →
Sleep Environment Score
20-question audit of your bedroom across light, temperature, sound, comfort, and habits. Prioritized recommendations ranked by effort vs. impact.
Score my bedroom →