Bamboo bedding for the warm summer night
Short answer: On warm nights it is the moisture and not the temperature that wakes you. A cover that moves sweat away from the skin does more than kicking the duvet off.
Moisture is the problem
If you sweat and the moisture stays between skin and fabric, everything feels clammy. A fabric that takes up the moisture changes the experience.
The duvet
A light summer duvet under the same cover does the rest. The cover cannot make a heavy duvet light.
Without a duvet
If you lie on top of the duvet with only a sheet, the fabric of the sheet matters even more.
Change the pillowcase more often
In summer the pillow turns clammy fastest. See bamboo bedding.
The nightwear
A thin layer of nightwear moves the moisture away from the skin before it reaches the bedding. See bamboo nightwear for women.
The room
Air late in the evening and close the curtains during the day. That does more than any textile.
See also
More on the subject in cooling bedding for summer.
Frequently asked questions
Can bedding make the night cooler?
It can move moisture away from the skin, and that is experienced as cooler.
Should I use a thinner duvet?
Yes. The filling of the duvet decides the warmth, the cover decides the feel against the skin.
Why does the pillow turn clammy first?
Because the head and hair give off a lot of moisture and the pillow is not aired in between.