A Portable Mattress That Straps to Your Back

A YouTuber named Simone Giertz has a new video where she uses a memory foam mattress to make a cut-out of herself.  Then she straps it to her back, so she can lie down and take a nap wherever she goes.

She's the same woman who went viral a couple years ago when she made an alarm clock that SLAPS you awake.

(WARNING!!!  Language NSFW)