BullWatch Sleep Calculator

BullWATCH PRODUCTIVITY

Sleep Calculator

Plan bedtimes or wake times using 90-minute sleep cycles and a fall-asleep buffer. Includes practical tips about caffeine, chronotype, light and screens.

Bedtimes for a fixed wake time

School mornings

Wake up time

Fall-asleep buffer (minutes)

Chronotype

Target sleep

Keep wake time stable Suggest 30-min wind-down

Productivity helper

Caffeine • chronotype • light • screens

Last caffeine

Screens in last hour

Morning light

Weekend wake shift

Method: estimates use 90-minute cycles plus your fall-asleep buffer. Waking at the end of a cycle can reduce grogginess.

BullWatch Sleep Calculator

Bedtimes for a fixed wake time

Wake times for a fixed bedtime

Productivity helper