Humans might be the only mammals in the animal kingdom with access to a washing machine and fabric conditioner, but it doesn't seem to be enough to stop us from being dirtier than our furry cousins.
This is after a study from North Carolina State University found that human beds are actually harbouring a host of nasty bacteria and debris - including skin cells, oral and faecal bacteria. Chimpanzees, on the other hand, did not.
One thing's for sure, it puts a whole new meaning to getting dirty between the sheets.