Wake up at 7:45 AM
Pre-configured calculator for a 7:45 AM alarm. Find when to go to bed to maximize your energy score.
Open full bedtime calculator →Average sleep latency is 14 minutes — adjust to match your profile.
Recommended bedtimes for a 7:45 AM alarm
Based on 90-minute sleep cycles and 14-minute sleep latency. Pick a bedtime that completes full cycles to wake up refreshed.
| Cycles | Go to bed at | Total sleep |
|---|---|---|
| 4 | 01:31 | 6.2 h |
| 5 | 00:01 | 7.7 h |
| 6 | 22:31 | 9.2 h |
Desired wake-up time: 7:45 AM
Recommended bedtimes
Why cycle timing matters
- → Waking during deep sleep causes sleep inertia (grogginess).
- → 4 cycles ≈ 6h sleep + latency — minimum for many adults.
- → 5–6 cycles (7.5–9h) is optimal for most people.
- → Adjust latency if you typically fall asleep faster or slower.
Sleep guides
FAQ — waking up at 7:45 AM
What time should I go to bed to wake up at 7:45 AM?
Typical options: 01:31 (4 cycles), 00:01 (5 cycles), 22:31 (6 cycles). Choose based on how many hours of sleep you need (4–6 complete cycles).
How many sleep cycles do I need before 7:45 AM?
Most adults need 4 to 6 cycles (6 to 9 hours of actual sleep plus 14 min latency). Use the energy score to pick the best slot.
Is 7:45 AM a good wake-up time?
It depends on your chronotype and bedtime. Early birds thrive on pre-7 AM alarms; night owls may need earlier bedtimes the night before.
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