10:00 PM to 4:00 AM spans 6 hours, crossing midnight.
How it is counted
From 10:00 PM, counting forward on the clock to 4:00 AM, is 6 hours — 360 minutes. Because 4:00 AM is earlier in the day than 10:00 PM, the count crosses midnight into the next day.
There are 6 hours between 10:00 PM and 4:00 AM (counting across midnight) — that is 360 minutes.
Is that counting overnight?
Yes. 10:00 PM is later in the day than 4:00 AM, so the count runs past midnight to the next day, giving 6 hours.
Is 6 hours enough sleep?
If 10:00 PM is your bedtime and 4:00 AM your alarm, that is 6 hours in bed — below the 7–9 hours most adults need, so you may wake up short on rest. The catch is actually getting up at 4:00 AM; see the sleep calculator to line the wake-up time up with a full sleep cycle.
Why people use Captain Wake to wake up on time
Not because it rings louder. Because it removes every way your half-asleep brain talks you back into bed.
1
There is no button to tap
Swiping an alarm away is a reflex you can perform while still asleep. A mission needs your thinking brain switched on — and once it is on, sinking back under is much harder.
2
It survives every trick
Force-quit the app, restart the phone, flip it to silent, turn the volume down. The alarm re-arms and keeps going until the mission is actually done.
3
It gets you physically upright
Photo and barcode missions are anchored to a spot in another room, so the only way to stop the noise is to stand up and walk there. You cannot pre-stage it from bed.
4
It fixes the night, not just the morning
A sleep forecast before bed, bedtime reminders and wake-up streaks — because the 6 AM problem usually starts at 1 AM.
Set the alarm, then actually beat it.
Captain Wake makes you complete a real-world mission to turn the alarm off — no snooze, no swipe-and-sleep.