The mountain huts on Fuji are truly an experience one can only expect to find on Mt. Fuji. Basic, but a large step up from sleeping in a tent, these huts offer toilets, hot cooked food, beer and sake for sale, and an incredible view. Sleeping is in shared communal spaces so it can get pretty loud with all the snoring and such--this is why we provide eye masks and ear plugs for everyone on our trips.
Still, sleeping can be a challenge, so it's better to think of this as a nap before an early morning wake up.