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New for 2012: Forty years ago, we patented the first self-inflating mattress and introduced the world to a new level of backcountry comfort. We're celebrating our anniversary with a limited edition mattress featuring our original logo and colors. The 40th Anniversary Edition mattress may look like a throwback to our first Therm-a-Rest® mattress, but it features cutting-edge technology that offers excellent comfort, packability and 4-season warmth. The foam used in this mattress is the lightest, most compressible material we've used, allowing greater comfort without additional weight or bulk. Additional insulation in the torso and foot of the mattress provides extra warmth where women need it most. Stuff sack and repair kit included.

  • Limited Edition: 1972 logo and color, with individual serial number, available for a limited time.
  • Comfortable: Two-inch thickness provides a high degree of comfort and support.
  • Efficient Warmth: The 40th Anniversary Edition features the lightest, most compressible foam used in any of our mattresses, allowing 4-season warmth without extra weight.
  • Visible: A glow-in-the-dark valve makes it easy to find at night.
  • Added Warmth: Extra insulation in the torso and foot provide warmth where it's needed most.

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