Sea To Summit Ether Light XT Insulated Review
The comfiest sleeping mat for backpackers
October 10, 2023 – The Sea To Summit Ether Light XT Insulated is our pick for the comfiest sleeping mat for backpackers. What stands out about this model are its four inches of thickness and Air Sprung Cells, which effectively disperse pressure, especially for side sleepers. While we aren’t particularly impressed by its R-Value, campers who prioritize comfort should definitely consider this model for 2+ season conditions. Shop now.
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- Price: $199
- Weight: 17.2 oz
- R-Value: 3.2 | R-Value/Weight: .18
- Thickness: 4”
- Fabric: 30d/40d
- Sizes: Small, Regular, Large, Regular Rectangle Wide, Large Rectangle
- Pros: Extra comfy and thick. Disperse pressure well. Lots of size options. Pillow lock feature.
- Cons: Expensive. Mid-tier R-value. Light-not-ultralight.
Compare to more great options in our guide to the best sleeping pads for backpacking.
Construction & Features
Even when comparing to other models in our roundup of the best sleeping pads, the four inch thick Sea To Summit Ether Light XT Insulated is thicker than average. Combine that with the pleasantly rounded Air Sprung Cells and you have a recipe for exceptional comfort. This surface absorbs weight more comfortably than most. Whether you sleep on your side or your back, or your stomach, your body will feel comfier on this mat. And you can choose from any one of five sizing options to fit your preferences!
But there’s even more to love about this chassis. We nod to the 21.5″ width of the size regular, which 1.5″ wider than average. The slightly enlarged side baffles also help center the sleeper on the pad, and prevent roll off. The pillow lock features is nifty too. This pad comes with velcro tabs that attach to the head end and your pillow to prevent it from sliding around in the night.
However, it’s not all gravy and cherries on top. At $199 for the size regular, this is one of the most expensive sleeping pads available, yet it has a middling R-Value of 3.2 (good for 2+ season use) and middling weight of 17.2 ounces. Given the premium price tag, we wish it were a little lighter and a little warmer.
Sea To Summit Ether Light XT Insulated Review Verdict
It may not have the most impressive stat line, but Sea to Summit Ether Light XT Insulated disperses weight pressure and delivers a comfier rest than most other pads. We recommend this 4″ thick pad for 2+ season backpacking trips when comfort is prioritized above weight and R-value.
