Monsters Inc. - Are You Winning, Mike?

I just have so many questions. That doesn't look like suicide, it looks like some kinda kink thing.

"I think so. Not too bad making an indoor tire swing without the tire, eh?"
"Yeah! But…why were you sleeping in it?"
"Weirdly good for my lumbar support. When you're essentially a ball with legs a flat bed always leaves me dissatisfied."