Thing change as we age. When I was 21 I would drive from CT to Miami in 24 hrs just stopping to go to the bathroom and to eat no pain. As I got older I would drive 4 hrs then sleep for 4 hrs went my wife drove. When I bought the MH at age 58 I had arthritis in my knee so bad I could not drive more that 1/2 hr without throbbing pain. I would have to put my right leg on the dog house and drive with my left before raising my seat which helped. Now at 66 I am struggling with the sciatica pain and use the wedge cushion and a back rest stopping every 2 hrs with some relief. This last week we took my wife's CRV down to Fla and I used a vibrating seat cushion plugged into an inverter which can cycle up and down your whole back which seemed to provide the most relief. I will definitely use this in the MH.