When dropping a mattress, sheets, and pillow on a bed frame they do not layer properly. Bed frame is on the top layer, mattress above that, and the pillow and sheets are below. The player sprite is also on top of all of that when sleeping, the Hazling no longer lays down under the sheet.
Additionally, when placing all those items down the floating '1' sits over them as if they were dropped items and not items added to the bed frame.
Fixed in 0.9.20