I'm mainly concerned with the 1400's. I've read that often entire families shared a single bed, which to a modern mind, feels alien. I'm sure attitudes on familial nudity were different in those times, but what about the teenagers or young adults yet to be married? I've read that it was common for the main couple of the family to have sex while the others slept beside them, so all this seems a bit squicky.
All this was gathered from separate sources, so no one has ever really painted the picture out fully. Were entire families, parents, teens, kids, grandparents, all sleeping naked together in the same big bed?
gonna mark nsfw just in case..
Medieval families in the 13th and 14th centuries typically slept nude, although occasionally headgarments would be worn to bed in order to stay warm. This seems shocking to modern sensibilities, but at the time was nothing unusual.
If anything was worn to bed, it would normally be a linen smock or undergarment. Linen was thought to draw pestilence out of the body, and was a common fabric available to all, and not subject to the same social restrictions as other materials (ie who was allowed to purchase it).
When sleeping nude, a linen shift would be left next to the bed, so that the next morning they could draw it under the covers to warm it before slipping it on; linen being a notoriously chilly fabric.