One of the best things about the Amazon Kindle is that it gives you more positions in which to read a book. When you don't worry about having to hold a book open you can sit pretty much however you'd prefer. And one of my favorite positions for reading a book or the Kindle is laying down over the edge of my bed, book on the floor, face overhanging. It's comfortable, but only for a bit.
All that lede burying is to say: I never imagined I'd even consider paying $80 for a folding sun chair, but the "3-in-1 Ostrich Chair," with its holes in the top for your face and arms has almost swayed me. I could even get a screen and a keyboard positioned under there, I bet, and maybe get a bedpan...
I'm just not going to be happy until I can spend my life floating in a nutrient tank absorbing media with absolutely no physical exertion.
Update: Looks like crapvendor Thanko has had a similar idea, although their version is a padded wedge. Mock if you must, but that looks pretty comfortable to me!