Thermarest NeoAir Xlite NXT

Thermarest NeoAir Xlite NXT

Inflatable mummy mattress, very light, insulating and comfortable. Thickness 7,6 cm - R-Value 4.5

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The opinion of Aventure Nordique

The Thermarest NeoAir Xlite NXT is an ultra-light air mattress. It weighs 370 grams and is 183 centimetres long. The NeoAir Xlite NXT fits perfectly to all body types and is available in different lengths. The NeoAir Xlite NXT is 7.6 cm thick and very comfortable. It has a Thermarest-specific Triangular Core Matrix structure with a wide flange. This new version has been significantly improved and offers an 83% reduction in noise compared to the previous model.

The NeoAir Xlite NXT is a 4-season floor mat with high performance insulation achieved through the use of ThermaCapture reflective barriers inside the mat. These aluminium foils allow heat to flow through. The heat is trapped in the tubes and is reflected back to your body! This process stops the cold coming from the ground. The mattress has an R-Value of 4.5, calculated with the ASTM F3340-18 standard.

It is equipped with the latest valve from Thermarest. The WingLock valve allows for faster inflation and deflation. It has a non-return valve that prevents air from escaping during inflation. The mattress is supplied with a storage bag and a pump bag that prevents moisture from blowing in.

Technical details

Manufacturer Therm-A-Rest
Product name NeoAir Xlite NXT
Season 4 season
Type air chamber
Form Mummy
R-Value 4.5
  • Top: 30D rip HT Nylon
  • Bottom: 30D rip HT Nylon
Colour Yellow
Length RS : 168 cm - R : 183 cm - RW : 183 cm - L : 196 cm
Width RS : 51 cm - R : 51 cm - RW : 64 cm - L : 64 cm
Thickness 7,6 cm
Folded RS : 23 x 10 cm - R : 23 x 10 cm - RW : 28 x 12 cm - L : 28 x 12 cm
Weight RS : 330 g - R : 370 g - RW : 450 g - L : 480 g
Accessories Repair Kit, Storage bag, Inflation Stuff Sack
Warranty Lifetime
Country of Manufacture Ireland


Note Moyenne 9 / 10 1 Avis
Two Minds
Avis de Paul le 26/07/2016
There are a few plus sides, and a few downsides to this product.
The downsides are :
This ThermaRest is very narrow, and is very noisy every time you move[ like a bag of chips ] and it also takes quite a lot lung power to inflate.
The Plus sides are :
VERY compact and lightweight, and VERY strong. It is also comfortable [ albeit to narrow ]

Would I recommend it? - In all honesty, I would probably look for a "wider" version of the NeoAir, and if you are sharing a tent, I suggest you either both have a NeoAir, or not at all, 'cos the noise can / will irritate your "tent partner"

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