Sleep Calculators
Last updated: October 2026
Sleep Temperature Optimizer
Recommends an ideal bedroom temperature in Β°F for better sleep quality based on season, sleepwear, and bedding weight.
Personal Sleep Need Calculator
Calculate your personalized nightly sleep requirement based on age, activity level, stress, and health status.
Age-Based Sleep Requirement Calculator
Look up how many hours of sleep per day are recommended for a given age, from newborns to older adults, using CDC, AASM and National Sleep Foundation guidance.
Melatonin Timing Calculator
Find when to take melatonin for your target bedtime: 30β60 minutes before bed for trouble falling asleep or daytime sleep after a night shift, or 2β5 hours before for a body clock that runs late.
Caffeine Half-Life Sleep Impact Calculator
See exactly how much caffeine remains in your bloodstream at any point after consumption.