If your fitted sheets pop off in the middle of the night and drive you crazy, there's actually a pretty easy fix.
Whenever my bottom, fitted sheet pops off one of the corners of my mattress, it throws me into a philosophical tizzy. What caused the fitted sheet to pop off: Me? The sheet? Has the mattress changed? My physical space morphs. Up becomes down, a queen size mattress becomes a king, and my sheets are shrunken to a twin-sized set.
I recently discovered a type of little gadget that makes my askew reality irrelevant, though. With these handy tools, it doesn't really matter what potential causes there are for a sheet to pop off because it won't happen in the first place.
Bed sheet clips–also called bed sheet suspenders–are what you've been missing restless night after restless night (assuming you're restless because of the bare corner of your bed...). A lot of brands offer a version of such clips.
All you have to do is clip your bed sheet in place under your mattress at the corners with the bands. Once you tighten them, they'll prevent your sheet from sliding up and popping off whenever you roll over too quickly or breathe too forcefully.
Even if your fitted sheets don't fly off your mattress as frequently as mine do, these clips can give your bed a sleeker look by smoothing out wrinkles and holding sheets more taut. I've never tried to bounce a coin off my neatly-made bed, but these bed clips are tempting me... especially because I know the fitted sheets will stay on no matter how hard I throw it.