Sea to Summit
Ether Light XR Insulated Sleeping
The manufacturer does not publish a list price for this product.
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Overview
Lightweight insulated sleeping pad delivers plush comfort and packable performance for backpacking, bikepacking, and backcountry adventures in cool-weather conditions. ThermalCore insulation uses multiple TRM layers to reflect infrared heat back to the sleeper while remaining quiet and low bulk for efficient warmth.
Specs
- Brand
- Sea to Summit
- Weight
- 445 g · 15.7 oz
- Material
- Nylon
- Product Dimensions
- 66.1"L x 21.7"W x 4"Th
- Material Primary — Source: retailer · checked 2026-10-06
- Packed Size — Source: retailer · checked 2026-10-06
- Weight G — Source: retailer · checked 2026-10-06
Weight vs. category
9% lighter than the category average.
How it measures up
Against every one of the sleeping pads in the RidgeNote register with a published figure. Manufacturer-listed; sources and dates are on this page.
- Weight
- 15.7 oz (445 g)
- Lighter than 42% of 33 weighed · #19 lightest
- +3% vs the median 15.3 oz
- Price
- $189.00
- Cheaper than 30% of 33 priced · #22 cheapest
- +76% vs the median $107.40 · $12.04/oz (median $5.37/oz)
The lightest of the sleeping pads on record is Gossamer Gear SitLight - 21" at 2.9 oz — 363 g less and $176.00 less.
The cheapest is Gossamer Gear GVP Foam Donut at $6.00 — $183.00 less.
RidgeNote verdict
Similar — lighter or cheaper
Compared with
Side by side on weight, list price and cost per ounce.
Related reading
The Warmest Sleeping Pad for the Weight in 2026
RidgeNote ranks 26 sleeping pads by R-value and weight to show which pad delivers the most warmth per ounce in 2026, from 283 g to 1996 g.
What Is the Lightest Backpacking Sleeping Pad in 2026?
A weight-and-price breakdown of 32 backpacking sleeping pads for 2026, from the lightest sit pad to the heaviest camp pad, ranked by the published figures.
Best Sleeping Pads for Backpacking 2026
Fourteen pads from R 1.3 to R 7.7, compared on the manufacturers’ published insulation and weight figures — air, self-inflating, and foam, with a reason to skip each.
No manufacturer list price published