I have one of these at work:
Wanted to get one for home for gaming/work from home since I can sit in that once comfortably at work for 9 hours plus, then I saw the price... So I tried a few of the more pricey options at office depot/office max, and with those even though they were fairly comfortable in the store after a few hours or so they would give this what I can only describe as butt fatigue heh. Even getting up once per hour for 5 - 10 minutes didn't help, the longer I sat in them the more fatigued and achy around the tailbone I would get. I saw this chair on amazon and figured I would give it a shot since it had almost as many adjustments as the bodybilt, and I could just ship it back if I didn't like it:
I love this chair. $150 (looks like the price went up since I bought mine and it's sitting at $200 now) and I prefer it to the Herman Miller Aerons at work. Read some of the amazon reviews for more details on the adjustments, but even at $200 I think it is worth it. Put it this way, how many hours a day do you spend in bed and how much did you spend on that? If I was full time work from home like you I would seriously consider spending the money on the bodybilt for my office chair, but that's only because I was able to use one at work for so long (it is still as comfy as the day I got it 8 years ago with minimal wear). This chair seems just as sturdy, is definitely as heavy, and has almost the same adjustments as my work chair that cost 7 times as much. Pretty sure it's covered by Amazons return policy too, so if you end up hating it just box it up and ship it back.