I can't fall asleep with clothes on

Seriously, I get way too hot. Even when my fiancé  and I cuddle. I have to strip down in my undies just to be comfortable. But then when he leaves for work I slip on a robe to say bye to him. And me being 20 still living with my parents get questioned if we did anything because I'm in a robe. Yeah I know it sounds bad but it's seriously so hot. I tell them no. And to be honest I'm so comfortable without clothes on because everything is weird on my body now. Anyone else feel that way?