Mr-TM Well, as a man I guess I have relstively wide hips. I also have a hip-style belt and I can only sleep comfortable on hard matrasses. So I was pretty much in truble in the beginning, but you get used to it.
The biggest problem I had with sleaping in the belt didn't actually have to to with the band pressing on my hip which I lay on, but with the fact that my hips seemingly change their width depending on if I stand or lay... so they become smaller when I lay down, somehow.
That's why the belt didn't fit propperly and was able to moove up and down a little but which is a truoble for me as a man bevause the penis tube is pretty tight at the body and when it's moving up and down a bit that's painful over the time. That's why I tried to make the belt one size (hole) snaller, which was too small, and yeah...
Well, over the time I either gained some weight or my hips became wider ... however I haven't had this problem anymore for quite a while.
Oh yeah, I also changed my sleeping position from sideways to constantly changing between sideways and sideways-belly.