Therm-a-Rest
Therm-a-Rest NeoAir XLite NXT
$175.94Cheaper
Best Sleeping Pads · head-to-head
Therm-a-Rest NeoAir XLite NXT vs Sea to Summit Ether Light XT Insulated
A sourced, side-by-side comparison. Therm-a-Rest NeoAir XLite NXT is cheaper at $175.94. Every spec and price links to its source.
Sea to Summit
Sea to Summit Ether Light XT Insulated
$199
Which is better: the Therm-a-Rest NeoAir XLite NXT or Sea to Summit Ether Light XT Insulated?
On the specs we track, they're closely matched. The Therm-a-Rest NeoAir XLite NXT is the cheaper at $175.94.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Therm-a-Rest NeoAir XLite NXT | Sea to Summit Ether Light XT Insulated |
|---|---|---|
| US price | $175.94 | $199 |
| Brand | Therm-a-Rest | Sea to Summit |
| Released | — | — |
| R value | 4.5 | 3.2 |
| Pad type | air | air |
| Weight grams | 370 | 490 |
| Thickness (cm) | 7.6 | 10 |
| Dimensions (cm) | 183 x 51 cm | 183 x 55 |
| Packed size (cm) | 23 x 10 cm | 24 x 11 |
| Insulation type | reflective-film | synthetic-fill |
| Inflation type | pump-sack | pump-sack |
| Shell denier | 30 | 30 |
| Shape | tapered | mummy |
Sources — Therm-a-Rest NeoAir XLite NXT: cascadedesigns.com (verified 2026-07-11). Sea to Summit Ether Light XT Insulated: seatosummit.com (verified 2026-07-11).
What's the difference between the Therm-a-Rest NeoAir XLite NXT and Sea to Summit Ether Light XT Insulated?
Where the two actually differ on the specs we track (7 of 10). Matching specs are omitted.
- R value: Therm-a-Rest NeoAir XLite NXT 4.5 vs Sea to Summit Ether Light XT Insulated 3.2
- Weight grams: Therm-a-Rest NeoAir XLite NXT 370 vs Sea to Summit Ether Light XT Insulated 490
- Thickness (cm): Therm-a-Rest NeoAir XLite NXT 7.6 vs Sea to Summit Ether Light XT Insulated 10
- Dimensions (cm): Therm-a-Rest NeoAir XLite NXT 183 x 51 cm vs Sea to Summit Ether Light XT Insulated 183 x 55
- Packed size (cm): Therm-a-Rest NeoAir XLite NXT 23 x 10 cm vs Sea to Summit Ether Light XT Insulated 24 x 11
- Insulation type: Therm-a-Rest NeoAir XLite NXT reflective-film vs Sea to Summit Ether Light XT Insulated synthetic-fill
- Shape: Therm-a-Rest NeoAir XLite NXT tapered vs Sea to Summit Ether Light XT Insulated mummy
What reviewers say
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
Therm-a-Rest NeoAir XLite NXT
Three whitelisted testers (CleverHiker, Switchback Travel, GearJunkie) field-tested the NeoAir XLite NXT and rate it a top ultralight three-season pad: 4.5 R-value at ~13 oz, highly packable (about a 1L Nalgene), and far quieter than the crinkly older XLite. All three flag the premium price. CleverHiker and GearJunkie also knock the pump sack; Switchback flags stiff, slippery baffles with slide-off and temperature-shift deflation. (3 sourced reviews, 3 lab-tested.)
Praised: Excellent warmth-to-weight ratio (4.5 R-value at ~13 oz); Much quieter than the previous crinkly XLite; Highly packable / compact (about a 1L Nalgene).
Flagged: Expensive / premium price; Pump sack mediocre — bulky and not the easiest to use; Stiff, slippery baffles; can slide off; temp-shift deflation.
Sea to Summit Ether Light XT Insulated
No sourced tester review yet.