Thermarest UltraLite 3/4:
Lightening your packload should imply that you have to make sacrifices. When Therm-a-Rest® reduced the weight of their original UltraLite 3/4 by 20% and trimmed the rolled volume by 30%, they made sure that you wouldn't do without any of the existing comfort. This enhanced design uses a new LiteFoam core material that insulates and protects just as well as the original material. A Staytek Lite top fabric helps keep nylon sleeping bags from slipping off the mattress in the middle of the night.