Itching at night and what the fabric contributes
Short answer: Skin itches most at night because the temperature rises under the duvet and because there is nothing else to notice. The fabric against your skin is what you can control.
Why the itching comes in the evening
Body temperature rises slightly when you lie down, and warmth increases itching. At the same time there are no distractions. The two together turn something you could ignore in the day into something impossible at night.
What the fabric can do
A smooth, cool layer against the skin rubs less and carries the heat away. Bamboo viscose lies flat and does not create the friction that triggers itching. See bamboo nightwear for women.
The bedding counts too
You lie against the sheet for eight hours. A smooth bamboo sheet often does more than the nightwear. See bamboo sheets and bamboo bedding.
Frequently asked questions
Should you sleep without clothes if your skin itches
Not necessarily. A smooth layer protects the skin from the sheet.
Does a cooler bedroom help
Yes, it is one of the most effective measures against night time itching.
Can the detergent be the cause
Often. Try one without perfume for a fortnight and see whether it changes anything.