Villagers are floating away from beds at night, they do come back When they wake up in the day time except one time where I found one under my village. This isn’t an issue with just my village I created I checked and it happens with naturally spawning villages as well, it can happen naturally or you can get on the bed they are on and you can push them while they are sleeping and they float away, this has been happening since the last minor update (On my PS4 it says version 2.18) but may have been going on since the update before that as I found my friend who was sleeping in a bed actually under the bed but was a one off but since the latest update It has happened every in game night to villagers.