Thermarest ProLite 4 Self-Inflating Sleeping Pad

Thermarest ProLite 4 Self-Inflating Sleeping Pad
The Thermarest Prolite 4 sleeping pad is a self-inflating, open-cell pad designed for the most extreme conditions. When deflated, it rolls up in its stuff sack to approximately 11" x 5" and weighs only 1 lb 10 oz. As a true four-season sleeping pad, it will work in the deserts of Utah during the summer all the way up to the highest mountains in the coldest of conditions. It is made of a durable outer fabric with inner foam for additional padding.


Designed for added insulation in extreme conditions, the Prolite 4 sleeping pad packs compactly, is lightweight and, of course, offers excellent insulation. It is comfortable, and even more so when used in conjunction with an additional foam pad.


The pad will self-inflate if left to its own devices for an extended period of time. Don't fool yourself into thinking that you're not going to have to blow it up some for maximum comfort, however. Be sure to tighten the valve completely to avoid loss of air during sleep.

Bottom Line

The Thermarest Prolite 4 is the lightest weight four-season sleeping pad on the market in 2009 . It is easy to inflate and comfortable, packs down for easy transport and will be a staple in your gear closet for years.

Article Written By Erika Napoletano

Erika Napoletano is a full-time professional writer and social media consultant based in Denver, Colorado. Her skills include experience as a formerly licensed securities professional and extensive real estate work including over 18 months in hard money lending. Recently featured in the Denver Business Journal for her social media expertise, Erika is a prominent figure in the Denver and Colorado social media communities.

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