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Thermarest ProLite Apex Sleeping Pad

  • Product Number: 3077 - 8400851

Boasting an unrivaled warmth-to-weight ratio, the Apex is the pinnacle of light and stable self-inflating comfort. The newest addition to our tried-and-true ProLite family adds warmth and thickness without adding additional weight. The lightweight Apex offers year-round warmth and comfort thanks to its unique StrataCore construction. The two-inch thick mattress ensures that you stay comfy during your backpacking adventures. Stuff sack included.


  • 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 Year-Round Comfort: Perfect for everything from winter adventures to summer backpacking.
  • Comfy Self-inflating Foam: Expanding foam core self-inflates; top off with air for personalized firmness on (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.

Specifications & Sizing:


R-Vaule: 4
Weight: 1 lbs 12 oz / 0.79 kg
Width: 25 in / 63 cm
Length: 72 in / 183 cm
Thickness: 2 in / 5 cm
Packed Dimension: 33 cm x 13 cm /  13 in x 5.1 in
Top Fabric Type: 50D polyester
Bottom Fabric Type:  50d Polyester
Foam Type: Urethane Foam

Ideal For:

Backpacking, Thru-Hiking, Camping, Lite-Weight