Inflatable Mattress Thermarest Neoair Xtherm NXT

Therm-a-Rest XTherm NXT Inflatable Mattress for Winter and Mountaineering

Lightweight, extremely warm and designed for extreme conditions — the XTherm NXT offers one of the highest warmth-to-weight ratios on the market (7.3 R-value at only 440g). Ideal for mountaineering, winter hiking and expeditions.

Maximum Thermal Insulation, Minimum Weight

The Triangular Core Matrix™ construction combined with ThermaCapture™ technology effectively retains body heat even in very low temperatures.

• R-value: 7.3 (suitable for winter and extreme cold)
• Weight: only 440 g (Regular size)
• Designed for: mountaineering, expeditions, winter camping

Comfort in Harsh Conditions

Its 7.6 cm thickness and horizontal chamber structure provide stable support and comfort throughout the night.

• Reduces pressure points
• Ensures a uniform sleeping surface on uneven ground

Durability for Long-Term Use

Materials chosen for intensive use in mountains and on expeditions:

• Bottom: 70D nylon – resistant to abrasion
• Top: 30D ripstop nylon – lightweight and compact

Fast and Easy to Use

The WingLock™ valve allows for quick inflation and deflation even in cold weather:

• One-way inflation (faster and more efficient)
• Easy adjustment while lying down
• Convenient to use even with gloves

Adaptable to Various Needs

Available in several sizes to adapt the mattress to your gear and travel style.

Included in the Set

• Pump sack
• Stuff sack
• Repair kit

Who is the Thermarest Neoair Xtherm NXT Inflatable Mattress Suitable For?

• Mountaineers and mountain expeditions
• Winter hiking and camping
• Travellers who value low weight + maximum thermal insulation

Summary

If you need reliable warmth in extreme conditions, but backpack space is limited, the XTherm NXT is one of the most technologically advanced and effective solutions in its class.

Photo credit: James Barkman