Heavy, hard, very rigid. Compared to previous ones, one feather, one anatomical cotton hard, and one bio cotton at the same price, the pillow is hard but of better quality. You won't hurt, but you won't rest either. Particularly cool, I never woke up sweaty. I wouldn't buy it again because I'm looking for something softer. Theoretically, it cannot be washed. But it is made of excellent quality cotton.

It is very hard and smells strange, I slept with this pillow for 2 days and both times I woke up with a headache

Good quality pillow, but despite saying it is 100% cotton inside and out and odorless, it has an annoying smell that doesn't go away.
Update: The smell remains. I had to put it in the washing machine and it still didn't get rid of the smell. It smells incredible, like a sheep. Although it is a very good pillow.
Update: I threw it away

Slightly harder than I expected, but the difference in quality from the kilo pillows is evident.