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Do you burn calories while you sleep? Yes — the honest maths

Do you burn calories while you sleep? Yes — the honest maths

Yes, you burn calories all night long. Your body's resting burn runs every hour of the day, so sleep still counts toward your Burnie deficit. Here is the simple maths behind the night burn.

1 Aug 2026 · Burnie Academy
sleep bmr calorie-burn

It is 11 pm. You are lying in bed. You did not eat dinner. A small worry comes: "If I sleep now, am I even burning anything?" Good news. Yes, you are. Your body never stops working, not even for one minute of the night.

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