
Sea to Summit
Sea to Summit Ether Light XR Insulated Air Sleeping Pad
$229
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Spaceframe baffles remove the waterbed roll common to tube-style pads. A 40D base and dual reflective layers push R-value to 5.4 without adding meaningful weight over the prior Tensor.
The overall score averages substance, design, and value.
Compared with 8 other products in edition 1.
This product: 9.1 out of 10
8.9 cm Spaceframe baffles are described as stable with no waterbed wobble.
This product: 9.1 out of 10
ASTM R 5.4; two reflective layers.
This product: 8.1 out of 10
20D top/40D base is a purposeful durability upgrade.
This product: 8.8 out of 10
Vortex pump sack, micro-adjust valve and repair kit included.
This product: 8.8 out of 10
530 g regular-wide for R 5.4.
This product: 9 out of 10
3.5-inch loft, rectangular cut and low-crinkle reflective design.
Its price buys a 40D base, two reflective layers, stable Spaceframe construction, a Vortex pump sack and repair kit. Independent tests specifically credit the new version with higher R-value and thicker, more durable base at lower weight.
A 3.5-inch, rectangular, relatively quiet pad with a genuine micro-adjust valve. The baffle geometry favors side and stomach sleepers who dislike the rolling sensation of longitudinal tubes.
20D bluesign nylon
Keeps the sleeping surface light and supple.
40D bluesign nylon
Meaningfully improves abrasion resistance where the pad meets the tent floor.
Two reflective film layers
Delivers high warmth with little bulk.
Spaceframe internal baffles
Creates a flatter, less waterbed-like platform.
Repair kit is included; NEMO provides repair support. The 40D base is sensible protection but it remains a lightweight welded air pad—inspect for pinholes and store clean and dry.




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