If I go to sleep now, what time should I wake up?
The calculator below is set to "sleep now" and updates to the current time. It adds about 15 minutes to fall asleep, then counts forward in 90-minute cycles so your alarm lands at the end of a cycle.
Sleeping now? Here are your best alarm times 👇
How "sleep now" times are calculated
From the moment you lie down, your body needs roughly 15 minutes to actually fall asleep. From there, the calculator adds full 90-minute cycles. Waking at the end of the 5th or 6th cycle (about 7.5 to 9 hours from now) usually feels best; the 4th cycle (~6 hours) is a reasonable shorter option for a late night.
Quick reference from "now"
| Cycles | Time asleep | Total from now |
|---|---|---|
| 6 cycles — best | 9 hours | ~9h 15m |
| 5 cycles | 7.5 hours | ~7h 45m |
| 4 cycles | 6 hours | ~6h 15m |
| 3 cycles | 4.5 hours | ~4h 45m |
If it's already very late, a 3-cycle (4.5 h) wake-up is gentler than waking mid-cycle at, say, 5 hours.