If saving weight is a top priority go for the Therm-a-Rest NeoAir XLite, the ultimate ultralight sleeping pad that shaves weight without reducing comfort or warmth. For multi-day winter trips, opt for the impressively warm and remarkably light Therm-a-Rest NeoAir XTherm.
Go for a closed cell pad if you need something really durable or are on a budget. We recommend the Therm-a-Rest Z Lite SOL if space is a concern and the Therm-a-Rest Ridge Rest SOLite if it's not. Both pads weigh only 14 ounces.
If you're 5' 6" or under check out our Women's Sleeping Pad Review. And finally, if comfort is top priority get yourself a Car Camping Mattress. These luxurious portable beds turn roots and rocks into plush, heavenly clouds. You won't want to go home.
Exped has changed the look of the SynMat 7 somewhat, but the specs seem to have remained the same. We have contacted Exped to confirm.