Am I being totally irrational?

My boyfriend and I broke up last year because he wasn't ready to do long distance. We got back together a 4 months ago (he decided that the distance wasn't worth losing me over). During our 6 month split he slept with someone new and had a FWB type relationship (just without actual sex but they did other things and slept in the same bed). He told me about it when we were talking about getting back together and it bothered me but I got over it quickly. We weren't together and he was trying to move on- he picked me over them in the end. 

But yesterday I was on the phone with him planning my first trip out to see him since our split about a year ago (he did visit me a few months ago). We were talking and it just occurred to me that I'm going to have to sleep in his bed where these other girls have slept in with him. It just makes me uncomfortable. Like really uncomfortable. I hate the idea of sleeping in a bed that he used with someone else. It's not like I can ask him to get a new bed or even new bedding because that just sounds crazy. But I'm now complete unconfritable to visit and have to sleep and have sex in that bed. I'm being irrational I think but I'm just so stuck on this stupid bed issue!