Bonnets

In the old days women and men had a sleep bonnet (or how do you call it?).
Not only were they used to keep the lice away.. or near the head. LOL!

They also provided warmth in the drafty houses and beds.

Now people get olders and the winters seem to be colder the night bonnet might start a new life.

People loose a lot of warmth through the head and it's wise to wear a bonnet not to get too cold.

Do you wear something on your head in winter when you go to sleep?
Or do you wear bedsocks?