We have a villagers trading hall with various villagers locked in rooms 6 in a sealed room, with two wooden gates as an airlock type entrance. They have their work station and bed in there. Rather randomly every few days the villagers will desync from their beds so half will not be sleeping, and we have to remove the none sleeping villagers beds and replace them again in a 'correct' order for them to sleep again. No other beds have been placed in the village area.