What Time Should I Go to Bed If I Wake Up at 5 AM?

If you wake up at 5:00 AM, go to bed at 9:15 PM for 5 full sleep cycles (7.5 hours), or 7:45 PM for 6 cycles (9 hours). Both times include about 15 minutes to fall asleep.

For most adults, 9:15 PM is the one to aim for. The rest of this page gives the exact bedtimes for 5:30 and 5:45 AM alarms, adjusts them for how quickly you fall asleep, and tells you what you're really getting if you go to bed at 10, 11 or midnight instead.

What time should I go to bed if I wake up at 5?

Go to bed at 9:15 PM for 7.5 hours of sleep, or 7:45 PM for 9 hours. These are the same numbers the sleep calculator gives for a 5:00 AM wake-up.

The math is simple: start at your wake-up time, subtract 15 minutes to fall asleep, then subtract 90 minutes for each sleep cycle.

Bedtime = wake-up time - 15 minutes - (cycles x 90 minutes)

So for 5 cycles: 5:00 AM minus 15 minutes is 4:45 AM, and 4:45 AM minus 7 hours 30 minutes is 9:15 PM.

Adults need at least 7 hours a night, so the 5- and 6-cycle times are the real targets. The 10:45 PM option ends on a cycle and may feel fine for a morning, but 6 hours isn't enough to live on. What 6 hours a night does over time.

What time should I go to bed if I wake up at 5:30?

For a 5:30 AM alarm, go to bed at 9:45 PM for 7.5 hours of sleep, or 8:15 PM for 9 hours. If 9:45 feels early, 11:15 PM gives 4 cycles (6 hours), which works for a night but not as a habit.

That extra half hour in the morning makes a 5:30 schedule noticeably easier for many people, because 9:45 PM is still a normal-feeling evening.

What time should I go to bed if I wake up at 5:45?

For a 5:45 AM alarm, go to bed at 10:00 PM for 7.5 hours of sleep, or 8:30 PM for 9 hours. The 4-cycle option is 11:30 PM.

A 10:00 PM bedtime is one of the easiest early schedules to keep. It leaves a full evening and still gets you 5 complete cycles.

Bedtime chart for 4:30 to 5:45 AM alarms

Find your alarm time and read across. Bold columns are the ones to aim for.

For an even earlier start, see how to wake up at 4 AM. For a later alarm, there are matching posts for 6 AM and 7 AM.

What if it takes me longer to fall asleep?

Move your bedtime earlier by the extra minutes: if you take 30 minutes to fall asleep, go to bed at 9:00 PM for 5 cycles before a 5 AM alarm.

The standard math assumes 15 minutes. Use the row that matches you.

Most healthy adults fall asleep in roughly 10 to 20 minutes. If you are out within a couple of minutes every night, that can be a sign you're short on sleep. What your time to fall asleep says.

Is 10 PM too late if I wake up at 5 AM?

A 10 PM bedtime gives you about 6 hours 45 minutes of sleep before a 5 AM alarm, a little under the 7-hour minimum for adults. It's fine now and then. Every night, it adds up to a sleep debt of over an hour and a half a week.

Here's what later bedtimes actually buy you, after 15 minutes to fall asleep:

If you already know you'll be up late tonight, the hours of sleep calculator shows exactly what you'll get from any bedtime.

Why a 9:15 PM bedtime is the hard part

The alarm is rarely the problem: going to bed while it's still a normal evening for everyone else is. A 9:15 PM bedtime means winding down by about 8:30, often while the rest of the house is still up.

A few things that help with that specific problem:

• Move bedtime in 15-minute steps every few days rather than all at once, and keep the 5 AM alarm fixed the whole time.
• Stop caffeine by late morning. For a 9:15 PM bedtime, an 8 oz coffee should be finished by about 11:40 AM to fall below 25 mg by bed. Check your own drinks with the caffeine calculator.
• Dim the lights after 8 PM. Bright light and screens in the evening push your body clock later, the opposite of what you want.

The full step-by-step plan for shifting your schedule, plus a sample evening timeline, is in how to wake up at 5 AM.