A big, beautiful comforter, spread neatly across the bed you share with a partner may look nice during the daytime. But at night, chaos results.
One person will be too hot, one too cold. Worse, one of them will probably toss and turn during the night, pulling cold air under the covers. The simple solution: separate blankets.
A two-blanket situation can still look nice: either fold one up at the foot of the bed, or layer them with the larger (or prettier) blanket on top.
You can get away with smaller blankets this way than if you had to fit two people underneath; when we upgraded from a queen to a king sized bed, I kept my queen sized comforter. It lays perfectly across the bed without hanging over the edge, and at night it belongs only to me. (My husband prefers a light blanket or a sheet.)
This hack also applies to surprise guests. If you have children who climb into the bed in the middle of the night, do yourself a favour: have an extra blanket handy.
How to stop them from sneaking in is a whole nother question, but at least if they have their own covers they won’t burrow under yours with their cold little feet.