Calculators to help you sleep better
8 tools matched to this goal.
Child Sleep Needs Calculator
Recommended sleep for your child’s age.
Bedtime Calculator
Best bedtimes to wake up between 90-minute sleep cycles.
Wake-Up Time Calculator
When to set your alarm if you go to bed now.
Sleep Debt Calculator
Total sleep shortfall over the last seven nights.
Caffeine Cutoff Calculator
Last time to drink coffee without hurting sleep.
Chronotype Calculator
Are you a morning lark or night owl? Uses mid-sleep time.
Nap Planner
Best time and length for a nap that will not wreck tonight’s sleep.
Daily Caffeine Intake Calculator
Add up caffeine from coffee, tea, soda and energy drinks.
Other goals
- Lose weight
- Build muscle
- Eat better
- Get fitter
- Protect my heart
- Manage blood sugar
- Pregnancy & fertility
- Care for my child
- Sleep better
- Mental wellbeing
- Cut back on drink, smoke & caffeine
- Understand my lab results
Related guides
Sleep & Mental Wellbeing
Sleep Cycles and How to Wake Up Refreshed
Why timing your alarm around 90-minute cycles can help.
Sleep & Mental WellbeingHow Much Sleep Do Adults Need?
Seven to nine hours for most adults, and the cost of shortchanging it.
Sleep & Mental WellbeingCaffeine and Sleep: When to Stop
Caffeine lingers in the body longer than most people think.