I spent three months in one. less wide is correct mechanisms catch things and its ruined. Also is this a bed in the hospital? or one at home? In the senior home they took them and didnt always return them to you frustrating I would think even if you mark what room/bed. At home still skinnier. also weight is a consideration. lighter you can layer too thick it might get tossed a lot. My sis went to the closet for a throw blanket forme they had and there were DOZENS of hand made quilts in there. she picked one for me then we read it was for someones specific bed and the nurse said oh dont worry they dont care. how lovely what about the person who MADE it for them? they might care. argh. I liked long enough to cover my toes but light enough to move on my own. just food for thought
good luck and how kind of you to do this.