When I was growing up in my parent’s attic, I had a few piece of interesting furniture, including an old bean bag chair. I don’t have it any longer, and I’m pretty sure it just fell apart at some point. Recently, I got a new one from www.sumolounge.com — they’re not cheap (around $130, but with free shipping), but they’re definitely built to last. It’s around 4′ x 5′ in size, very sturdy, and the material feels very thick. Even when Bently (our dog) jumps and attacks on it, it leaves no mark, much less a tear. The web site says that it’s made of “ballistic nylon”, which is surprisingly comfortable considering the name. Finally, you can actually form the chair depending on your purpose (using a notebook computer vs sleeping =). Believe it or not, the only thing I’d change is the size — it’s so big that it really becomes the focal point of any room you put it in and can be difficult to store. If it were a little smaller, I’d probably be able to get more use out of it.