Review (4/5): Soft & silky
The outside is a soft t-shirt material and the inside is satin—perfect for protecting your locks.
I will say that the cap is kind of rectangular/sack-shaped; I would think it might be slightly better if it were shaped more for a head, but it does fit my thick, waist-length hair, so I can't complain too much on that.
It stays in place while I sleep and doesn't sleep too hot. Hopefully it holds up well!