After eyeing these pajamas for months - trying to decide if I wanted to pay that price for pajamas, I finally took the plunge during the Black Friday sale. Boy am I glad I did, they are so soft and keep me from getting too hot at night, even in the pants. I took the recommendation from a few Instagram accounts and sized up to a medium, knowing that I would dry them on extra low heat despite recommendations to air dry and would prefer my pajamas to fit loose rather than slightly small. A small probably would have fit fine, too; I just prefer a roomy fit. I am typically a size 2/4, 5'4", and around 120 pounds. After shrinking I found them to fit how I wanted in the waist (comfortably loose and not falling down). The top is slightly big, but not annoyingly so. The pants do shrink in length by a few inches and hit just below my ankle bone (I have long legs/short torso). All in all - I love these pajamas and have asked for a robe and another set for Christmas.