Originally Posted by Kalboz

Had an almost 16 hours daytime layover at HND (NH850 to NH186) so we decided to spend it at Haneda Airport Garden Spa which was highly recommended by the Japan tourism information counter. Truly amazing and the best airport experience ever - hands down! Perched atop of the Hotel Villa Fontaine Premier on the 12th floor with the hotel lobby directly connected to the airports' arrival hall. Looking out to Mount Fuji as well as HND runways, the facility has an open-air bath, four types of indoor baths, three types of hot stone spa, as well as relaxation rooms, beauty & massage parlor, and a restaurant. We spent around 12 hours there sleeping, bathing, relaxing, dining, and I got a 1-hour foot massage for a total cost for 4 all in ~$281. Awesome experience and highly recommended if you don't want to venture into Tokyo, and the nearby hotels are too expensive for a daytime stay.