The smallest nook needs only a supportive seat, a directional light, and a surface for one drink or book. Scale is more important than a shopping list.
Shape the room
Place the chair so your shoulder is near a wall or curtain, which creates a little visual shelter. A small stool can double as a footrest and side table.
Let it earn its place
A defined corner gives rest a physical address, making it easier to pause before the day moves on.