Breaking a bed after sleeping through the night results in two beds landing on the ground. I slept once before this on the first night without issue but on the second night it happened. It seems that the bed will not duplicate if it is originally placed after the allowed sleeping time. If it is placed before you are allowed to sleep then it will duplicate. In the included video I show the bed dupe if I place the bed before night time. This is not 100% confirmed.

Video Link: https://youtu.be/rfLoLLCX2Fc