Mulder is almost never seen sleeping in a bed. The bedroom in his apartment (which appeared as late as the sixth season of the show's run) is apparently used for storage and is filled floor to ceiling with junk, including a couple of boxes of pornographic magazines. Instead, Mulder sleeps on his couch, often falling asleep to a blaring television. Mulder can seem to go through manic periods when worried or working on a case, contributing to or exacerbating his insomniac tendencies. Since "Dreamland II" where a "man in black" body-swaps with Mulder and takes over his life, Mulder gets his bedroom renovated and equipped with a waterbed. In "Monday" he finds himself soaked through when his waterbed (which he can't remember getting because Morris Fletcher got it in Dreamland) is leaking.