It's an insulator. It really depends on the density and thickness of the feathers but usually, it is an insulator
Concrete is one of the worst insulators
Any featherbed with down or other natural insulator will be great for cold nights and will retain plenty of heat.
insulator
It is an insulator.
its an insulator
insulator.
Insulator
insulator
Insulator
Insulator
itβs a insulator