I can’t tell you how many times I had ended up with little to no blankets after sleeping 4 four hours. Eventually, spouse and I decided that we would get two full-size blankets for the bed so that we could each have one. This has prevented so many restless nights.
I’ve considered this. Some people could take offense to being asked to sleep separately I imagine.
A night of listening to me snore causes folks to be charmingly receptive to those conversations. Uncanny, really.