I would hesitate to call it 'comfy' outright, because I can be so much comfier with the traditional methods (warmth, music, etc.), but: watching my torrents.
Whether I'm downloading or uploading something, there are so many numbers to look at: the size of the files, percentage downloaded, upload speed and seed ratios, to name a few. The constant fluctuation of these numbers draws me into a trance.
After I start seeding, I usually sit and watch the numbers for a good few minutes. It's also a form of procrastination: when I was revising for my exams by the computer, I must have stared blankly at my torrent client for a good twenty minutes.
I also find the peer-to-peer relationships quite comfy. I just think about the guys that I'm uploading to. 'Huh, maybe the guy I'm seeding the documentary about Mongolian herdsmen to is a Russian student sitting in his bedroom and staring out the window onto a snow-littered square.' Things like that.
I guess I find these things comfy because the numbers are unpredictable, and therefore easy to gaze at while they continually update. Imaging the situations about the people I'm uploading to is probably due to the fact that I know nothing (just an IP address), and therefore there is a boundless field for imagination and rumination on their possible lives.
It's pretty weird.