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Mountain Spring

Mountain Spring UL R9 Insulated Sleeping Mat

Mountain Spring UL R9 Insulated Sleeping Mat

Regular price £158.00 GBP
Regular price £148.00 GBP Sale price £158.00 GBP
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Built for true deep-winter missions, the R9 Series pairs an exceptional R-value of 9 with ultralight builds that stay quiet, supportive, and compact. A dual-core thermal system—reflective film + upgraded internal insulation—locks in heat over frozen ground, while the 3D profile spreads pressure evenly for stable sleep. A dual-layer valve makes inflation simple and deflation fast.

R9 — 680 g, 30D nylon
The original R-9 mat with a tougher 30D shell for added abrasion resistance and everyday durability—ideal when terrain is rough but you still need deep-winter insulation.

R9 Pro — 520 g, 20D nylon
Our gram-counter choice: the R9 Pro delivers full R-9 protection at just 520 g, using a refined 20D shell for minimal weight. It sets a new bar for warmth-to-weight performance—R-9 in a truly ultralight package.

Choose R9 Pro when every gram matters, or R9 when you want extra shell toughness. Either way, you’re packing four-season warmth ready for alpine pushes, snow camps, and high-latitude routes.

Specifications

  • Type: inflatable
  • Shape: Rectangular
  • R-Value: 9.0
  • Dimensions: 190 × 66 × 8.9 cm
  • Packed Size: φ10 × 28 cm
  • Valve Type: dual-layer valve (one-way inflation + rapid deflation)

Materials

  • Top Fabric: 30D/20D nylon
  • Core Material: air
  • Thermal Film: Yes (aluminum foil reflective layer)
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