When a skunk sprays a block near a bed, the block the spray clings to overrides the bed, breaking it. This leaves the bed obstructed and unobtainable.

edit: apparently the spray also removes blocks like slabs if the wall the spray wants to stick to has a slab in front of it.

https://drive.google.com/file/d/1aLRimzWCGkDXV9ASM1DPagJ_SHFysnlx/view?usp=drive_link Here's a video showing the issue.