As
jib71 says, space isn't exacly at a premium around Narita (You can get a double room at the Tobu Narita for about 6,000yen - the usual cost of a capsule room in the city)
For an alternative quintessentially Japanese experience, how about spending the night here:
http://www.tokyo-dome.co.jp/e/laqua/spa.htm
Access info:
http://www.tokyo-dome.co.jp/e/access/
(Korakuen station is just a couple of stops from Ueno - a train journey should take about 70 minutes)
Not all salarimen make it to capsule hotels, you'll see a quite a few people dozing in these all night spas.