Yes, available in Tokyo and Kyoto, Book and Bes is a cosy hostel where you can sleep in a cute little cube hidden behind the library selves laden with books! But beware, this is not a place for you if you are looking for a good night sleep. It is made specially for those book lovers. Each room comes with simple mattress and reading light.
The books available are in English and Japanese, and they are not for sale. Also, they might just have opened a new area call Book and Bed and Beer.
It costs about $34 per night with free wi-fi! For more info, visit http://bookandbedtokyo.com/en/