Comfort items. Nice slippers, snuggie, robe etc…

Anything that makes lounging on the couch is fair game.

High quality bedding can be appropriate depending on relationship level.

Pro tip, work your gift idea into a conversation with them by complaining about your similar item. They will tell you if they love/hate their thing.

Bonus tip, once they start complaining about their thing take note of what they don’t like about it and solve their problems.

Listening to complaints is the real core of thoughtful gift giving.