Sea to Summit
Ether Light XT
Side sleepers
Manufacturer list price (MSRP)
$189.00
Retailer prices change, so we show the manufacturer list price and link out for you to check the current price.
These links run a keyword search on the retailer's site.
Overview
Listed for side sleepers at roughly 17 oz, with a 4-inch Air Sprung Cell platform. This is the warm-season Ether Light XT: its R-value of 1.2 handles mild nights, not cold ground, so pair it with a warmer pad or save it for summer trips.
Specs
- Brand
- Sea to Summit
- Weight
- 480 g · 16.9 oz
- R-value
- 1.2
- Material
- Nylon
- Best comfort to weight ratio for 3 season pad.
- Stonefly 58 5 out of 5 stars Reviewed in the United States on August 9, 2021 Style: minimalist camping-oriented Brief content visible, double tap to read full content. Full content visible, double tap to read brief content. Love this pad. Have used the regular size for two years. This pad is an upgrade in width. Priceless. Read more Read less Helpful Sending feedback... Thank you for your feedback. Sorry, we failed to record your vote. Please try again Report Sending feedback... Thanks, we'll investigate in the next few days. Sorry, We failed to report this review. Please try again
- Best for
- Side sleepers
- Cover Material
- Nylon
- Fill Material
- Air
- Item Weight
- 0.46 g
- Material Type
- Nylon
- Mattress Comfort Layer Material
- Comfort Foam
- Product Dimensions
- 72"L x 21.5"W x 4"Th
Weight vs. category
This product16.9 oz
Category average15.7 oz
8% heavier than the category average.
Our verdict
Weighing approximately 17 oz with a 4-inch (10 cm) thickness, this air mattress uses Air Sprung Cell construction to cradle body contours. Side-sleepers routinely praise its deep cushioning, noting that shoulders and hips rarely touch ground. The critical limitation noted by reviewers is warmth: with an R-value of 1.2, cold soil siphons body heat. The plain tradeoff is deep summer comfort versus cold-ground insulation. It suits a warm-season side-sleeper prioritizing thick padding on mild nights.
Similar — lighter or cheaper
Related reading
Start here
The Complete Beginner Backpacking Gear List
Everything you actually need for your first overnight — and what you can skip.
Buying guide
Best Lightweight Backpacking Tents (2026)
Eight shelters ranked by weight, livability, and price — with honest reasons to skip each one.
How-to
How to Get Your Base Weight Under 10 lbs
A practical, no-gimmicks path to a lighter pack.
Manufacturer list price (MSRP)
$189.00