Sleep Calculator

Last updated: 2026-08-24

Sleep Calculator — Calculate recommended sleep hours by age.
Inputs
Result
Enter values and press Calculate

How to use it

  1. Define hour of despertar (ej: 7:00)
  2. Each cycle of sleep lasts 90 minutes
  3. Resta cicthe completos: 6, 5, 4 or 3 ciclos
  4. Resta 15 minutes additional to conciliar sleep
  5. Choose hour that permita 5-6 cicthe to rest optimal

Common mistakes

  • ⚠️ Acostarse exactamente a the hour calculada (takes 15min dormir)
  • ⚠️ Dormir in exceso (>10h) regularmente (asociado a problemas health)
  • ⚠️ Use alarmas of sleep in apps without validación científica

Worked example

Calculate sleep recommendation for 30 year old.

Each opción represents cicthe of sleep completos (90min); 6 cicthe (9h) is optimal to recovery maximum.

Input guide

FieldTypical range
hora_despertarHora: 5-10