Sleep Calculator 😴
A good night’s sleep consists of 5-6 complete sleep cycles. We account for the average 15 minutes it takes to fall asleep.
If you go to bed right now, you should aim to wake up at one of the times below for the best results.
How Does the Sleep Calculator Work?
Waking up in the middle of a sleep cycle can leave you feeling groggy and tired. Our calculator helps you avoid this by identifying the best times to fall asleep or wake up. The calculations are based on the natural sleep patterns of the human body, which consist of several 90-minute cycles.
- A typical sleep cycle lasts about 90 minutes.
- A full night of rest should ideally include 5 to 6 complete sleep cycles.
- On average, it takes about 15 minutes for a person to fall asleep. This is factored into our calculations.
Recommended Sleep by Age
| Age Group | Recommended Hours of Sleep |
|---|---|
| Newborn (0-3 months) | 14-17 hours |
| Infant (4-11 months) | 12-15 hours |
| Toddler (1-2 years) | 11-14 hours |
| Preschool (3-5 years) | 10-13 hours |
| School Age (6-13 years) | 9-11 hours |
| Teenager (14-17 years) | 8-10 hours |
| Young Adult (18-25 years) | 7-9 hours |
| Adult (26-64 years) | 7-9 hours |
| Older Adult (65+ years) | 7-8 hours |