Protecting the sensor overnight

I’m a new user and have had the Freestyle Libre 3+ for about a week. I’m a side sleeper. This weekend, I rolled over in the middle of the night and managed to pull the sensor out from dragging it on the sheet. It is on the backside of my arm, but I think it’s hard to not have it rub on the bed. I submitted online for a replacement, but now I’m trying to find ways to help prevent this. I’ve seen a lot of posts about people using covers on theirs, but they seem expensive given you’d go through one a day. I’m more just concerned with keeping it secure overnight. Has anyone found a simple hack that works for overnight? I was going to slap a large bandaid over it but I read that the hole needs to be uncovered so I don’t think I should that.

Any suggestions??