Highly recommend you head into the city -- it's only an hour by bus / train and there isn't much to do in the Narita area. Not sure what your budget is but the Tokyo Station hotel can be had for around $400 and is super easy to get to from the Narita Express - but there are literally tons of hotels within walking distance of Tokyo Station to fit any budget -- and lots to do in Tokyo the next morning before heading back to the airport.

One thing -- make sure you pre-register at Visit Japan Web to upload your vax documentation, passport, and pre fill out all the customs / immigrations forms...