Leather Seat Comfort

this is my first post as a brand new 2007 Touring Silver Pine Mica Prius owner. I purchased this car with option 5 plus the leather seat upgrade with Liquicell. Since I had a minor accident only 4 days after purchase, I haven't had much of a chance to drive my car since it is in the shop; however, my daughter also purchased the same car in white and we just returned from a trip between Dallas and San Antonio. The car is such fun to drive and play with but our major complaint is seat comfort. The driver and passenger front seats are so hard that rear end fatigue is a pretty bad problem. So the question is, does anyone out there have suggestions for what can be done to make the seats more comfortable? Will this improve over time? Any and all help would be greatly appreciated. Thanks.