In homes with usually only one room, the box-bed allowed some privacy and helped keep people warm during winter. It was the main furniture of rural houses in Brittany until the century. i think holland slept in similar 'bunk' box beds?
One of the most haunting photos from Chernobyl- A liquidator recovers a baby abandoned in a village home during the evacuation. - Because I actually find the entire Chernobyl incident interesting. Sad, very sad.