Hard Seats

I have an 03 LTZ with leather interior. I did not notice when I test drove it but having owned it for 6 months I find that the seat is almost as hard as a folding metal chair after a couple hours of driving. Is it just me or has anyone else noticed this? Wish they had put the seats from the Tahoe in there.

It's not just you! That seat just kills my back. I've tried cushions, and lumbar supports but nothing helps. I am now considering having the seat reworked in an upholstery shop. Has anyone else had this experience and if so, how did you resolve the problem?