I ordered the size my husband normally wears, and they were good for him. I know there were a lot of reviews about sizing on here. But we had no problems. I love that these are long enough. My husband is tall and so most of these sleep pants are right out of the pack too short. Or if they are OK to start, once they are washed and dried they are too short.
These pants started out long enough for him, and there was absolutely NO shrinking after they were washed and dried. They are the best sleep pants I have picked up for him.