😴SleepFree Tool

Sleep Routine Builder

Enter your wake time and sleep goal to get a personalized bedtime, wind-down schedule, and caffeine cutoff.

How this works

  • Bedtime is calculated from your wake time minus your sleep goal minus your typical sleep onset time.
  • Caffeine cutoff is 6 hours before bed — the half-life of caffeine means it still affects sleep quality well past when you feel the buzz.
  • Sleep cycles run approximately 90 minutes. Waking at the end of a cycle — even with slightly less sleep — typically feels less groggy than being woken mid-cycle.