I'm trying to wean myself off the computer as my late-night relaxation method. Apparently, there are studies that the bright screen tricks your mind into thinking it's still daytime. Personally, I find that the internet frequently becomes a drug and you'll find yourself surfing the web into the wee hours.
I've taken to reading short story anthologies. A few days ago, I checked out the following from my local public library: The Year's Best Science Fiction (2007), The Best American Short Stories (2004), O'Henry Awards, Prize Stories (2000). I think it's working. I can finish a story in about a half hour, I get transported to a different world (whereas the internet just feeds my ADD tendencies), and I can turn the light in my room to the dimmest level while still being able to read.