I did not buy my pajamas off of Amazon but I thought I would leave a review here as well.  I LOVE them so much.  Lightweight and so soft! I was a little nervous about the fit because I am typically (in most brands) a xsmall/small in tops and a medium/large in bottoms.  I decided to go with a medium and it fits very well (5'4", 124lbs, 3 months pregnant). The top and bottom are loose but not too loose, they're perfectly comfortable.  I want to buy more to be honest!