This is so freaking cute. Its also SOOO comfortable. Im 51 and 130lbs and I went with a medium.

You can see from the photos that it fits well size wise, hits my ankles and my wrists but if I were to purchase again I would get a large because it rides up on my legs when I sit or lay down.

This is the perfect loungewear and its pretty warm! The only downside is the zipper on the butt is weak. It broke open the day I got it, but I fixed it fairly easily.

Four stars because of cheap zipper.