The Thermarest Prolite Plus Large 2023 is a self-inflating sleeping mat made for campers who want a bit more comfort and insulation without a bulky setup. It’s sized to fit most tents and provides a more cushioned surface under your sleeping bag, helping you rest better after a day on the trail.
With a 3.8 cm thickness, this pad strikes a balance between padding and packability, smoothing out uneven ground and reducing heat loss. The 50D mini hex rip polyester top adds durability against tears and punctures, while the integrated polyurethane insulation boosts warmth compared to simple foam designs. Once deflated, it compacts to about 33 x 13 x 13 cm, making it easy to stash in or on your pack.
This mat has an R-value of 3.2—a measure of thermal resistance that indicates how well it blocks heat loss to the ground. An R-value at this level is suitable for three-season use, keeping you comfortable on cool nights without adding unnecessary bulk.
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Thermarest says about the Prolite Plus Large 2023
For journeying into the backcountry with self-inflating support, our ProLite Plus is a camp favorite. The 1.5-inch (3.8 cm) pad boasts a 3.2 R-value for added warmth in the backcountry. The diagonal-cut foam creates a lighter mattress without sacrificing warmth. Premium materials and foam provide legendary Therm-a-Rest comfort and support. The versatile self-inflating pad features the high-performance WingLock valve, which has three-times the airflow rate of the classic valve thanks to a larger opening and one-way inflation. Like all Therm-a-Rest pads, the ProLite Plus is made in market to ensure quality and minimize environmental impact. The pad includes a compact stuff sack.