Comfortable based on one trip. Work inside the sleeping bag.
Good as a basic duvet cover. On the hottest days, maybe a hint of sweating.
Insanely practical on my Asian trip !!! It would be good, though, if I could wash more versatile then I would have dared to put in the laundry in the middle of my trip. It could be a little bigger and the part going over the pillow would need a more polar attachment than a small sticker.
Goes to a small space and is light to carry around!