Welcome to a capsule hotel!
Only found in Japan, this low cost hotels can host dozens of customers in only one room.
It's definitively not for claustrophobic people!
For the story, I didn't planned my trip well and ended up in transit in an unknown Japanese town. The only youth hostel was sold out so I had to improvise.
I ended up in this huge Casino/hotel/Onsen complex, bargaining for a room.
For a pretty decent price, I was assigned my own capsule n°7001 and free access to the Onsen.
With nothing to do till my train on next morning, I spend the evening chilling in hot tubes, surrounded by naked Japanese guys that didn't speak a word of English!