A shirt and a duvet.
How does one wear a duvet?
A bit like a stole or shawl your Majesty, but, not necessarily covering the arms and shoulders only. It can cover the whole body, or hardly anything at all. It can be worn when sitting on a couch, or comfy chair. People are then often have the duvet wrapped around them. Or it can be worn in bed, then it depends on the need for warmth, what parts of the body will be covered by having the duvet resting on those parts of the body.
At the moment I am wearing a duvet again. It leaves my head, arms, shoulders, feet and calves uncovered.