So basically I made this simple iron farm and it worked pretty well for a while but then all the sudden my villagers just wouldn't sleep. So since they didn't sleep after 20 minutes or so Iron golems didn't spawn anymore kinda ruining my farm for AFKing. But one weird thing I've found is that if I'm next to the villagers and I log out and back into the server I see them sleep for a split second then get back up. I tried replacing the villagers and I made sure they took the right bed and it still isn't working. I'm planning on just making a new farm but I still want to fix this one. I provided a picture of what the villagers little place look like and they typically sit there the entire time and don't even move. They don't get scared of the zombie either which is weird but if anyone knows a fix for this or something please help me. I am VERY confused. I don't know how easy it would be to recreate but here's the video I used. https://www.youtube.com/watch?v=0L_optIDx2U