I don’t sleep in bras, but if I did I’d wear this one! I think it’s the perfect one for under pajamas when you feel like you gotta have one on. (You know houseguests, traveling, teenagers, etc!) So lightweight and airy- just smooth and stretchy with no clasps or wires or metal! It’s also my go to when I am wearing a crochet or sheer top since it’s a longline fit. I have in several colors. Wearing Medium in bra and Small in pajamas