I'm looking at purchasing one of the Therm-A-Rest pads. Weight of about 1.2 lb to 2.2 lb. Sleeping is a must so a little extra weight may be worth it.
MH, you need to read the book The Soldiers Load and the Mobility of a Nation. Basically goes through how every added pound (however small it may seem in the big picture) wears on you over a long course of miles/time. Makes you think twice about saying "a little extra weight may be worth it". No, a little extra weight is never worth it over the long haul. You pack smart, and light. Just a suggestion. But hey, I was only in the Marines for 4 years and only did a "couple humps"... Oorah
"I've never seen a wild thing feel sorry for itself..."