I actually do not wear this to sleep in - I prefer to sleep au naturale ; ). I just wear it to lounge around the house during the hottest months of AZ spring/summer. It's super comfortable and feels great on the skin.

Purchased a large im 5'4" 180 pounds with a 38 DD chest. Fits comfortably. Not snung and not too loose. I usually wear a Medium top but I wanted extra room for my chest. since I'll be sleeping in it, I want to be very comfortable.
I just purchased the white colored one too.

very soft and comfortable, metal strap adjusters not cheap plastic ones. Very comfortable and plenty long enough. Im 5ft 8in and this is just above my knee. Wanted something simple and comfortable and I am not disappointed. It does fit a little big. I don't think a medium would fit. For the price I'm very happy with it

Silky smooth and great navy blue color - Med is a little large for me at 5'7 145 lbs but I'd buy it again

I bought this to wear as a slip. Would also work for sleep. It is soft which I really like.
Often satin can feel cheap and not soft, this one was nice. I ordered 3 colors. I wear a size 8
ordered the med and it fit perfectly.