Sleeping naked has benefits, according to Dr Natasha Turner, author of The Hormone Diet.
Oxytocin
When two naked bodies touch, oxytocin is released, the feel-good hormone that reduces stress and depression.
Melatonin
Melatonin is both sleep hormone and anti-ageing hormone. At higher body temperatures it is less active. Sleeping cool, naked, keeps you younger.
Sleep depth
Body temperature also influences the depth of your sleep. Sleeping naked helps your body regulate itself.
Body awareness
You get to know your body better. That is not unimportant.
Ventilation
And ventilation is healthy: warmth and bacteria go hand in hand. It is not for everyone. For those who feel at home with it, it is an underrated habit.