score:4
The showers are available on the Arrival Lobby on the Second Floor.
Available 24 hours
Fees ¥1,030/30min.(with drink coupon) ¥520 for each 15min. thereafter * As of April 1, 2014.
http://www.haneda-airport.jp/inter/en/map/floormap/map.html?floorId=MAP002&serviceId=30
WiFi is available in the terminal
Steps for FREE wireless internet access are as follows:
Choose the network ID(ESS-ID) "HANEDA-FREE-WIFI" on your PC or internet device. No WEP key is needed.
Open your web browser.
Procedures for the connection are indicated on the web browser. You must register your name and e-mail address.
Enjoy free wireless broadband!
http://www.haneda-airport.jp/inter/en/premises/service/internet.html