Best seat cushion so far found.
Now own two of these seat cushions (different styles), and purchased the mattress.  Still testing and its better than others, but like the thicker model.<br />This is the better version of the two I've purchased so far.<br /><br />It's heavier than I was expecting, I don't think theres anything they can do about that.  Extends comfortable seating time by about 30%, but standing and exercising every 15-30 minutes is a much better option.  They have several varieties of these pads; I generally recommend the larger and thicker sizes for people (like drivers) who must sit for a long period of time.
Rating: 4 stars