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

Sleep Quality Score Calculator

Score your sleep quality out of 100 by rating duration, consistency, morning alertness, disturbances, and environment. Use it to identify which factor is hurting your rest the most.

Sleep Duration (hours)

Schedule Consistency

Morning Alertness

Sleep Disturbances

Sleep Environment

Fill in the required fields to see your result.

Sleep

Caffeine Sleep Impact Calculator

Calculate how many milligrams of caffeine remain active in your system at bedtime based on when and how much you consumed, using a standard 5-hour half-life. Even moderate residual caffeine at bedtime measurably disrupts sleep architecture, not just sleep onset.

Caffeine Consumption Time (hours (24h format))

Caffeine Amount (mg)

Desired Bedtime (hours (24h format))

Fill in the required fields to see your result.

Key differences

	Sleep Quality Score Calculator	Caffeine Sleep Impact Calculator
Category	Sleep	Sleep
Inputs required	5	3
Result	Sleep Quality Score (/100)	Caffeine Remaining at Bedtime (mg)
What it does	Score your sleep quality out of 100 by rating duration, consistency, morning alertness, disturbances, and environment. Use it to identify which factor is hurting your rest the most.	Calculate how many milligrams of caffeine remain active in your system at bedtime based on when and how much you consumed, using a standard 5-hour half-life. Even moderate residual caffeine at bedtime measurably disrupts sleep architecture, not just sleep onset.