What's a normal resting heart rate during sleep?

Why sleeping heart rate is lower than daytime

During deep sleep your body is doing its quietest work: blood pressure drops, the parasympathetic “rest and digest” nervous system takes over, and your heart slows to its daily minimum. That’s why an overnight resting heart rate is cleaner than a daytime “resting” reading taken while you’re sitting at a desk thinking about your inbox — there’s no hidden stress propping it up.

What counts as normal

For most healthy adults a sleeping heart rate falls roughly in the 40–60 bpm range, and well-trained endurance athletes can sit lower still — the high 30s aren’t unusual for them. Older adults and people earlier in their fitness journey tend to run higher. None of these bands is a target; they’re just context. Your own steady baseline is the reference that counts.

When during the night it bottoms out

A healthy pattern usually shows your heart rate falling through the first half of the night, reaching its lowest point in the early hours, then drifting up toward morning as you move into lighter sleep. If your lowest point comes very late instead — close to waking — it can hint that something (a late meal, alcohol, a hard workout) made your body spend the early hours recovering rather than resting.

What a rise above your baseline means

A sleeping heart rate several beats above your personal normal is one of the body’s earliest, most reliable warning lights. The usual suspects are a late or large meal, alcohol, dehydration, stress, or the first hours of an illness before you feel any symptoms. One high night is noise; two or three in a row is a signal worth easing off for.

Vitra reads your overnight resting heart rate against your own rolling baseline every morning, so instead of guessing whether 54 is “good”, you get a plain-English read of whether it’s high, low, or normal for you — and a nudge when it’s been climbing.

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