S
Sleep Calculator
Calculate optimal bedtimes and wake times based on 90-minute sleep cycles.
Health
v1.0.0
102 uses
S
Sleep Calculator
Esc
or
Ctrl+Shift+F
to exit
About This Tool
Plan your sleep schedule around natural 90-minute sleep cycles to wake up feeling refreshed instead of groggy. Enter when you need to wake up to find the best bedtimes, or enter when you're going to sleep to find optimal alarm times. Based on sleep cycle science for better rest quality.
How to Use
- 1 Choose mode: 'I need to wake up at...' or 'I'm going to sleep at...'
- 2 Enter your target time
- 3 View recommended times based on 90-minute sleep cycles
- 4 Choose a time that gives you 4-6 complete cycles
More Tools in Health
C
Calorie Calculator
HealthCalculate daily calorie needs based on age, weight, height, and activity level.
M
Macro Calculator
HealthCalculate daily macronutrient targets for protein, carbs, and fat.
W
Water Intake Calculator
HealthCalculate recommended daily water intake based on weight and activity.