😴
🧸

Set a Bedtime for School Wake-Ups

Work back from the school alarm to a consistent, cycle-friendly bedtime.

Уваход не патрабуецца
Go to bed at
9:45 PM
9 hrs
6 cycles · ideal
Go to bed at
11:15 PM
7.5 hrs
5 cycles · ideal
Go to bed at
12:45 AM
6 hrs
4 cycles
Go to bed at
2:15 AM
4.5 hrs
3 cycles

💡 Sleep happens in ~90-minute cycles. Waking at the end of a cycle (rather than mid-cycle) helps you feel refreshed instead of groggy. Most adults do best with 5–6 cycles (7.5–9 hours), plus ~15 minutes to drift off.

Kids tips

🧸

Enter the school wake-up time to find bedtimes that give a full night of complete cycles.

💡

School-age kids need more sleep than adults — aim for the longer (6-cycle) options.

🎯

A consistent bedtime, even on weekends, keeps the body clock steady and mornings easier.

Як гэта працуе

1
Увайдзіце
Enter your data into the tool above. Everything stays local to your browser.
2
Працэс
The tool processes your data instantly in your browser using JavaScript. No server, no waiting.
3
Спампаваць
Get your result instantly. Nothing is stored after you leave the page — complete privacy.

Навошта карыстацца нашым?

Цалкам бясплатна — ніякіх схаваных выдаткаў
Не патрабуецца ўліковы запіс, электронная пошта або ўваход
Файлы ніколі не пакідаюць вашу прыладу
Няма ніякіх абмежаванняў па памеры файла
Няма вадзяных знакаў ні на адным выхадзе

Also check out…

Часта задаюць пытанні