B.O.B wrote an answer about Therm-a-Rest Trail Lite Sleeping Pad on January 3, 2012
I have found it helps to fold the pad in Half and roll it up squeezing the air out. The n unroll and roll again to get more air out. Used this pad last year on a trip to CO with our scout troop. could have pad rolled up and in it's stuff sack in less than 5 min.