The UK just saw its hottest May day on record, and we’ve had some unusually hot “tropical nights” (over 20C) too.
That can ruin your sleep. One paper found that heatwaves are especially ruinous, causing us to lose crucial minutes of shut-eye.
But if you’ve been sleeping in the nip for a cooler night, Natalie Pennicotte-Collier, a resident sleep expert at MattressNextDay, says you might want to reconsider.
Why shouldn’t you sleep naked in a heatwave?
It has to do with how sweat, which needs to evaporate to cool us off, behaves.
You might think that water wicks away faster when we’re naked. But the sleep expert said that’s not always tru...


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