How Many Hours of Sleep is 11 PM to 7 AM?

If you go to bed at 11 PM and wake up at 7 AM, you get 8 hours of sleep — counted straight across the clock, lights-out to alarm.

You might also want to know how the total changes if you wake up earlier or later, or how much actual sleep you get compared to the time spent in bed. This guide explains it clearly.

If You Sleep at 11 PM and Wake Up at 7 AM, How Much Sleep Do You Get?

Want to know the best times to fall asleep or wake up based on sleep cycles? Use the full Sleep Cycle Calculator.

The Quick Math

Counting across midnight is where people slip. The trick is to split the span in two — the stretch from your bedtime up to midnight, then the stretch from midnight to your alarm — and add them. It works for any overnight schedule.

Here’s the same idea laid out for the wake-up times people ask about most when they’re heading to bed at 11 PM:

So if your alarm lands anywhere in that window, you can read your answer straight off the table.

Got a Different Bedtime or Alarm?

If your hours don’t match the ones in the table — maybe you turn in at 10:45, or your alarm’s set for 6:15 — you don’t have to do the arithmetic in your head. Drop your times into the sleep cycle calculator, and it’ll count the span for you, including the across-midnight ones that are easy to fumble.

The calculator works the other way around, too. If you’d rather plan by sleep cycles than by raw hours — aiming to have your alarm land at the end of a cycle instead of the middle of one — that’s a slightly different question. Our 11 PM bedtime guide covers the cycle-friendly wake times for nights that start at 11. And if you’re shifting your whole schedule earlier, the 10 PM spans work the same way, just an hour back on both ends.

The 11 PM Time Spans People Ask About Most

A handful of these come up over and over, usually phrased as a quick “how many hours” question. Here they are, answered directly.

If you sleep from 11 PM to 7 AM, how many hours? Eight. Asked a few different ways — “11 PM to 7 AM is how many hours,” “how much sleep is 11 PM to 7 AM” — but the answer’s the same. This is the one most people land on, probably because eight hours is the figure everyone grows up hearing.

If you sleep from 11 PM to 6 AM, how many hours? Seven. This one shows up phrased a dozen ways: “if I sleep at 11 and wake up at 6,” “how many hours of sleep will I get from 11 PM to 6 AM,” “11 PM to 6 AM is how many hours.” However you word it, it’s a clean seven-hour night.

If you sleep from 11 PM to 5 AM, how many hours? Six. An early start — a long commute, a gym session, an early shift. Bed at 11 and up at 5 gives you six hours total.

Notice the pattern: every hour you push your wake-up time later adds exactly one hour to your total.

Time in Bed vs. Actual Sleep: How the 8 Hours Are Counted?

Here’s a small but honest distinction. When you ask how many hours 11 PM to 7 AM is, you’re really asking how long you’re in bed — the full clock span. But almost nobody falls asleep the instant their head hits the pillow; most people take 10 to 20 minutes to drift off.

So if you get into bed at 11 PM sharp and your alarm rings at 7, your actual sleep is closer to 7 hours 40 than a clean eight. It’s a small gap, but it’s why a full night in bed can still feel a touch short. To make the time in bed match the time asleep, get under the covers about 15 minutes early.

It’s also the difference between two questions that look identical: “how many hours is 11 PM to 7 AM” (the clock span) and “how much sleep did I actually get” (that span minus however long it took to nod off). For planning ahead, the clock span is the number you want; for an honest read on a rough night, knock off the time you spent staring at the ceiling.

Is 8 Hours From 11 PM to 7 AM Enough?

This is the question hiding behind the math for a lot of people, so here’s a straight answer: eight hours lands right in the middle of the range adults are generally advised to aim for, which is commonly cited as 7 to 9 hours a night. An 11-to-7 schedule sits comfortably inside that typical target — neither short nor excessive for most adults.

Where you personally feel best inside that 7-to-9 band varies from person to person, and a steady pattern tells you more than any single night does. But as a baseline, 11 PM to 7 AM is a solid, unremarkable eight — the kind of number you don’t have to second-guess.

FAQs: How Many Hours of Sleep is 11 PM to 7 AM?

Is 11 PM to 7 AM enough sleep? Eight hours sits in the middle of the 7-to-9-hour range most adults are generally recommended to get, so for many people it’s a sufficient night. What feels “enough” can vary from person to person, and consistency often matters more than a single night’s duration.

How many hours of sleep will I get from 11 PM to 6 AM? Seven hours. From 11 PM to midnight is one hour, and from midnight to 6 AM is six more.

How many hours is 11 PM to 5 AM? Six hours total.

If I go to bed at 11 PM, when should I wake up? It depends on whether you’re measuring total hours or aiming for full sleep cycles. If you want cycle-based wake-up times that help you wake at the end of a cycle instead of in the middle, there’s a dedicated 11 PM sleep calculator guide.

How many hours of sleep is 10 PM to 6 AM? Eight hours. It’s the same total as 11 PM to 7 AM, just shifted one hour earlier on both ends. There’s also a separate guide for 10 PM bedtime schedules.

Bottom Line:

To recap what you came here for: 11 PM to 7 AM equals 8 hours of sleep. If you wake up at 6 AM, that becomes 7 hours, and at 5 AM it becomes 6 hours. Each hour you wake up earlier reduces the total by one hour.

Two things worth holding onto. The count measures your opportunity for sleep, not its quality — the same span can be a great night or a restless one, so don’t lean on the clock to tell you how rested you’ll feel. And it counts time in bed, not time asleep, so turn in a little early if you want the full amount.

For any other bedtime or wake-up time, you can use our sleep cycle calculator to get an instant result.

Related Readings

• If I Go to Bed at 11 PM, When Should I Wake Up? — cycle-based wake times for an 11 PM bedtime.
• How Many Hours of Sleep Is 10 PM to 6 AM? — the same math, an hour earlier on both ends.