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Therm-a-Rest NeoAir XTherm NXT Review
Need a high-performance sleeping pad for cold-weather expeditions? In this Therm-a-Rest NeoAir XTherm NXT review, we break down why this ultralight insulated pad is trusted by mountaineers, alpinists, and winter backpackers who refuse to compromise on warmth or weight.
The Therm-a-Rest NeoAir XTherm NXT is an ultralight inflatable sleeping pad designed for extreme conditions. With an R-value of 7.3 and a weight of just 15 oz (for the regular size), this pad delivers unmatched insulation-to-weight performance. The updated NXT version improves comfort and quietness compared to its predecessor, thanks to a softer and quieter surface fabric and a slightly thicker profile (3 inches).
It uses ThermaCapture™ technology to reflect radiant heat and Triangular Core Matrix™ construction to minimize convective heat loss while maintaining stability. It’s compact, easy to inflate using the included WingLock™ valve and pump sack, and packs down to about the size of a water bottle.
Key Specifications
| Weight | 15 oz (regular) |
| R-Value | 7.3 |
| Thickness | 3 inches |
| Packed Size | 9 x 4.5 inches |
| Inflation Valve | WingLock™ valve |
| Material | 30D rip HT nylon top / 70D nylon bottom |
| Sizes Available | Regular, Regular Wide, Large |
Comparisons
Therm-a-Rest NeoAir XTherm NXT vs. Sea to Summit Ether Light XT Insulated
The Sea to Summit Ether Light XT Insulated pad offers more plush comfort with a 4-inch thickness and Air Sprung Cell™ design, making it great for side sleepers. However, it has a lower R-value (around 3.5) and is heavier, making it better suited to 3-season use. The Therm-a-Rest NeoAir XTherm NXT wins in insulation, weight, and packability, making it the better choice for winter adventures or high-altitude backpacking.
Therm-a-Rest NeoAir XTherm NXT vs. Exped Ultra 7R
The Exped Ultra 7R also targets cold-weather campers with an R-value of 7.1 and synthetic insulation. It’s slightly heavier than the Therm-a-Rest NeoAir XTherm NXT but still a strong competitor. The XTherm NXT edges ahead with its lighter weight and compact packed size. Exped’s Schnozzel pump system is a plus for fast inflation, but Therm-a-Rest’s WingLock valve is also very efficient. Both are excellent; the XTherm is ideal for gram counters.
Pros & Cons Summary
| Feature | XTherm NXT | Ether Light XT Insulated | Exped Ultra 7R |
|---|---|---|---|
| Weight | ✅ Ultralight (15 oz) | ❌ Heavier (~21 oz) | ❌ Heavier (~21.9 oz) |
| R-Value | ✅ Very high (7.3) | ❌ Moderate (3.5) | ✅ High (7.1) |
| Comfort | ✅ Supportive, quieter than before | ✅ Very plush and thick | ✅ Stable with synthetic fill |
| Packed Size | ✅ Small (9 x 4.5″) | ❌ Larger | ✅ Compact |
| Durability | ✅ Reinforced nylon bottom | ✅ Durable outer fabric | ✅ Tough materials |
| Best For | Winter backpacking & mountaineering | Side sleepers, comfort-focused trips | Ultralight winter backpackers |
Looking for a different sleeping pad for your trip? View our Best Sleeping Pads guide for more options.
Frequently Asked Questions
Is the NeoAir XTherm NXT good for side sleepers?
Yes, the 3-inch thickness provides adequate support, but side sleepers looking for extra plushness may prefer a thicker pad like the Ether Light XT.
Does the XTherm NXT crinkle like the older version?
It’s noticeably quieter than previous models, thanks to updated face fabric that reduces crinkling noise.
Is a pump sack included?
Yes, it comes with a pump sack, stuff sack, and repair kit.
Can it be used in summer?
Yes, though it may be overkill for warm nights. It excels in cold to sub-zero conditions.
How durable is the XTherm NXT?
It features a 30D top and 70D bottom, offering a good balance of low weight and durability for alpine terrain.
Final Thoughts
The Therm-a-Rest NeoAir XTherm NXT is a top-tier sleeping pad for winter and alpine conditions. With its exceptional R-value, lightweight build, and improved quietness, it remains a go-to for backcountry travelers who demand maximum insulation with minimal weight. If you’re planning a cold-weather trek or mountaineering expedition, this pad is hard to beat.
