Having recently spent three nights in two hotels I again am wondering why hotels don't use fitted bottom sheets. Yes, it is somewhat simpler for the laundry and for the housekeeping staff at least when they are grabbing stacks of sheets to take on their rounds. But isn't it harder to put a flat sheet on a bed than a fitted sheet?
And what about the customer? I'm sick and tired of turning down my bed only to have to retuck 3/4th s of the bottom sheet! And even then my tossing and turning ends up untucking the bottom sheet again and I find myself in the middle of the night on the bare (and usually rough) mattress.
If I could find a hotel that didn't use a flat sheet on bottom I'd use it and send nasty letters to all of the others.