I've never heard of an airport hotel at HND. Are there any? I have to wonder myself.
It's probably better to come to downtown -- roughy 30 minutes on monorail to Hamamatsucho station, which is linked to the JR Yamanote loop line that covers pretty much major points in Tokyo. Or on Keikyu train service, you can also get to Shinagawa station, also a JR Yamanote loop station, where I do know there are several big hotels.
I think there are a few hotels on the monorail line in the Odaiba area, esp. like a JAL hotel.
What I don't like about this monorail is, if you have lots of luggage, it can be really cumbersome going up and down escalators and stairs at Hamamatsucho.