Bed linen for nights when it is too warm
Short answer: Choose a thin sheet, a light duvet and a material that moves moisture. It is the moisture between skin and fabric that wakes you, not the temperature alone.
Moisture is what wakes you
Sweat trapped between skin and sheet is uncomfortable long before the heat is. See bamboo bed linen.
A light duvet beats no duvet
Without a duvet you get cold at dawn when body temperature drops. See bamboo nightwear for women.
Thin nightwear helps
A thin layer moves moisture away from the skin better than bare skin against the sheet. See bamboo nightwear for men.
Air in the room matters most
An open door or a window ajar does more than any textile. See bamboo clothing for women.
Frequently asked questions
What bed linen is best when it is warm?
A thin sheet in a material that moves moisture, plus a light duvet rather than none.
Why do you wake at night when it is warm?
Often from the moisture between skin and fabric rather than from the temperature alone.
Should you sleep without a duvet when it is warm?
Rarely a good idea. Body temperature drops at dawn, and then the cold wakes you instead.