HEART RATE GUIDE

What’s a normal sleeping heart rate?

For most healthy adults, heart rate during sleep sits at roughly 50 to 75 beats per minute, a little below the 60 to 100 that counts as a normal resting rate while awake. Fit people often run lower. What matters most is how your number compares with your own usual, not with anyone else’s.

How is sleeping heart rate different from resting heart rate?

Resting heart rate is your pulse when you’re awake, calm, and sitting or lying still. The American Heart Association, MedlinePlus, and Cleveland Clinic all put a normal resting rate for adults at 60 to 100 beats per minute. Well-trained athletes often sit lower; MedlinePlus lists 40 to 60 for them.

Sleeping heart rate is your average while you’re actually asleep. Because it’s measured across the night, it isn’t thrown off by the moment you happened to stand up or climb the stairs. That makes it a steady number to follow over time.

What’s a typical range while you sleep?

Cleveland Clinic gives about 50 to 75 beats per minute for healthy adults, and says sleeping heart rate often runs around 20% to 30% below daytime resting heart rate. How big that dip is varies from person to person, so treat these numbers as a rough guide, not a pass-or-fail line.

People really do differ. In a study of more than 92,000 adults wearing wrist trackers, average resting heart rate ranged from 40 to 109 beats per minute from one person to the next. Within each person, though, it stayed much more consistent.

Why does heart rate dip at night?

As you settle into deeper sleep, your body shifts into a calmer, rest-and-recover mode. According to the National Institute of Neurological Disorders and Stroke, heartbeat and breathing slow to their lowest levels in deep sleep. During REM sleep, when most dreaming happens, heart rate and blood pressure rise back toward waking levels. So it’s normal for your overnight graph to rise and fall through the night.

What can nudge it up?

Alcohol. In a study of more than 4,000 Finnish employees, heart rate in the first hours of sleep was higher after drinking than on the same people’s alcohol-free nights. Even small amounts showed an effect, and more alcohol meant a bigger rise.
Late meals. In a small 2026 Northwestern Medicine trial, people who stopped eating three hours before bed, and fasted longer overnight, had a bigger nighttime dip in heart rate than people who kept their usual schedule.
Illness. Infections can raise resting heart rate. Researchers have even used rises in wearable heart rate data to help track flu-like illness across the US.
Stress. Stress and anxiety can push heart rate up, and Cleveland Clinic notes that stress hormones can mean a faster sleeping heart rate.
Hard training. In a small study of trained runners, a hard interval session in the early evening raised average overnight heart rate by about 3 beats per minute, even though their sleep wasn’t disrupted.
Heat. The American Heart Association notes that outside temperature and a higher body temperature can raise heart rate. A cool bedroom helps.

Dehydration, caffeine late in the day, and some medicines can play a part too.

Why does your own trend matter more than one night?

Any single night can be off for ordinary reasons: a glass of wine, a late dinner, a warm room, a cold coming on. In that large tracker study, about one in five people had at least one week when their resting heart rate moved by 10 beats per minute or more. A one-night bump of a few beats usually just reflects your day.

What tells you more is a change that lasts several nights, or a slow drift over weeks, compared with your own usual range. If you notice one, think about what’s changed lately before assuming anything is wrong.

When should you talk to a doctor?

Your heart rate has been running noticeably faster or slower than usual for you.
It’s often well above 100 beats per minute while you’re resting or asleep.
You feel your heart racing, pounding, or skipping, or you have shortness of breath, chest discomfort, lightheadedness, or fainting.
Someone notices loud snoring, pauses in your breathing, or gasping while you sleep. Sleep apnea can raise heart rate at night.

The American Heart Association advises calling 911, or your local emergency number, if your heart rate is suddenly very high or very low for you, especially with chest pain, shortness of breath, dizziness, or fainting.

How Wellplease helps

Wellplease reads your sleeping heart rate from Apple Health and compares it with your own usual range, using up to 60 earlier days once it has at least 7 prior nights. That comparison feeds your Recovery score, along with HRV when your watch shares it, last night’s sleep, and the past week’s sleep. Trends only calls something a change when it’s bigger than your normal ups and downs; otherwise it says “About the same.” Your health history stays on your iPhone, and the scores are wellness estimates, not medical measurements. See how the scores work.

Sources

This guide is general information, not medical advice. Last reviewed October 10, 2026.

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