There are so many options when it comes to loungewear. My top picks are a set of really nice pajamas by Kingsman and a basic set of pjs by Derek Rose. Another option is a laundered cotton pajama pant by James Perse, also available in a lighter version jersey pant. Pair it with a basic lounge short sleeve crew neck tee, and throw on a fleece hoodie. A really nice lined robe once out of the shower to keep warm by James Perse, and a sueded jersey robe to lounge around in.