Conversely, I prefer the lightest-weight covering possible, but I inexplicably still need something to cover me. In the summer time, I like a lightweight sheet, and will stick with that deep into the fall.

Even if temperatures do drop overnight, I like that the sheet somewhat contains my own body heat and is relatively warm inside the sheet.

Of course, in the winter time I'll upgrade to a blanket, but I try to stick to the lightest possible one.