As a resident project engineer in my mid-twenties, I stayed at motels three weeks on with a weekend at home. I began wearing nightclothes after I realized than the bedsheets are not always changed bewteen guests (don't ask on accounta you don't wanna know how I found that out - let's just say I didn't pay that night's stay). Plus, I keep it cold in the house year round and I'd freeze getting out of the bunk especially since I lost over a hundred pounds. (Since I lost weight, I have had to keep the daytime temp about 4C above what I used to keep it at even tho I wear a hoodie most of the time.)