If coop is too small they will Sleep in nesting boxes mine are doing that now I have New coop in the works
With that said you can go into the coop at night after they settle and pick them out of the best box and place them on the roost if there is room.
Also blocking off the boxes at night will help
With that said you can go into the coop at night after they settle and pick them out of the best box and place them on the roost if there is room.
Also blocking off the boxes at night will help