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Therm-a-Rest ProLite™ Apex™ Sleeping Pad




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For lightweight self-inflating support, the ProLite Apex brings packable performance and legendary Therm-a-Rest support. The self-inflating foam measures 2 inches (5 cm) and features our StrataCore construction, a design that provides the best warmth-to-weight ratio of any self-inflating foam construction. The ProLite Apex 3.8 R-value allows adventurers to stave off the cold during three-season pursuits. The packable 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 Apex is made in the market to ensure quality and minimize environmental impact. The pad includes a compact stuff sack.


  • StrataCore™ Construction: Yielding the best warmth-to-weight ratio of any self-inflating mattress, StrataCore uses a continuous layer of thermal foam nestled between alternating ridges of air and foam.
  • Lightweight Comfort: Our warmest ProLite ever allows three-season adventuring without weighing down a pack.
  • Rugged, Self-inflating Foam: Expanding foam core self-inflates; top off with just a few breaths for personalized firmness on 2 inches (5 cm) of StrataCore loft.
    Easily Fits In Your Pack: Packs down small to easily find a place in your pack during fast and light adventures.
  • WingLock™ Valve: Our intuitive and dependable valve maximizes airflow for easier inflation and quick deflation. Wings toggle for one-way inflation to save breath.
  • Multiple Sizes: Offering a range of sizes, including a spacious regular wide, allows you to pick a length that best suits your adventure needs.
    Stuff sack included


Style: Reg 13256 / Lrg 13258
R-Value: 3.8
Total Weight: Regular - 1 lb 6 oz / 0.62 kg / Large - 1 lbs 14 oz / 0.85 kg
Width: [Standard] R- 20 in / L- 25 in / [Metric] R- 51 / L- 64 cm
Length: [Standard]
R- 72 in / L- 77 in / [Metric] R- 183 / L- 196 cm
Height/Thickness: [Standard] 2 in / [Metric] 5 cm
Packed Dimension: [Standard] R- 11x 6.8 in / L- 13 x 7 in / [Metric] R- 33 x 18 cm / L- 28 x 17 cm
Fabric: [Top] 50D polyester print / [Bottom] 50D polyester print
What's Included: Stuff sack
Country of Origin: USA* Built of the Finest U.S. and Global Materials

Additional information

Weight 1.2 kg



Heat Wave


Regular, Large


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