My wife, our 2 daughters and I all use Therm-a-rest ProLite Plus pads. We use them year around for summer and winter camping. If I really want to go light on a short trip, I'll use my 3/4 length Therm-a-rest. However, on longer trips good sleep is very important.
They are a good compromise between weight, comfort and price. If you do not need the 4 season capability, the regular ProLite is considerably lighter.
Winter camping
My wife's secret method of compressing a Therm-a-rest.
