Compare calculators

Both calculators run independently — change the inputs on either side to compare results.

Optimal Nap Timing Calculator

Find your ideal nap window based on when you wake up and when you go to bed. Useful for avoiding grogginess and not disrupting your night sleep.

Morning Wake Up Time (hours (24h format))

Night Bedtime (hours (24h format))

Fill in the required fields to see your result.

Sleep

Melatonin Timing Calculator

Find your ideal melatonin dose and when to take it based on your weight, age, and sleep issue. Useful for shift workers, older adults, and anyone struggling to reset their sleep schedule.

Body Weight (kg)

Age (years)

Primary Sleep Issue

Fill in the required fields to see your result.

Key differences

	Optimal Nap Timing Calculator	Melatonin Timing Calculator
Category	Sleep	Sleep
Inputs required	2	3
Result	Optimal Nap Start Time (hours)	Suggested Melatonin Dose (mg)
What it does	Find your ideal nap window based on when you wake up and when you go to bed. Useful for avoiding grogginess and not disrupting your night sleep.	Find your ideal melatonin dose and when to take it based on your weight, age, and sleep issue. Useful for shift workers, older adults, and anyone struggling to reset their sleep schedule.