Therm-a-Rest NeoAir XLite NXT vs Therm-a-Rest Trail Pro
In short: The Therm-a-Rest Trail Pro costs $50 less; the Therm-a-Rest NeoAir XLite NXT is warmer by 0.1 points of R-value; the Therm-a-Rest NeoAir XLite NXT saves 17.0 oz; one is air and the other self-inflating.
| Spec | Therm-a-Rest NeoAir XLite NXT | Therm-a-Rest Trail Pro |
|---|---|---|
| Approx. price | ~$210 | ~$160 |
| R-value | R 4.5 | R 4.4 |
| Season band | Cold three-season | Cold three-season |
| R-value standard | ASTM F3340 | ASTM F3340 |
| Weight | 13 oz | 1 lb 14 oz |
| R per ounce | 0.35 R/oz | 0.15 R/oz |
| Thickness | 3 in | 3 in |
| Pad type | air | self-inflating |
| Inflation | pump sack | self-inflating |
| Dimensions | 72 × 20 in | 72 × 20 in |
| Packed size | 9 × 4.1 in | 11 × 8.8 in |
| Insulation | Two layers of reflective ThermaCapture film over triangular core matrix baffles | Die-cut open-cell urethane foam with a stretch-knit face |
| Top fabric | 30D | 50D |
Shaded cells mark the row where one has a measurable advantage. Weight, thickness, girth and shape are left unshaded on purpose: heavier is sometimes tougher, wider is sometimes warmer, and calling a winner on those would be an opinion dressed as a measurement.
What each one does well, and costs you
Therm-a-Rest NeoAir XLite NXT
- 4.5 R-value at 13 ounces is the best warmth-per-ounce of any non-winter pad here — 0.35 R per ounce, against 0.27 for the Nemo Tensor All-Season.
- Three inches of loft keeps a side sleeper's hip off the ground, which the older 2.5-inch generation of ultralight pads never quite did.
- The WingLock valve deflates in about two seconds and accepts the included pump sack, so you never have to breathe damp air into the baffles.
- Packs to roughly the size of a one-litre bottle, which is what makes it work in a 40-litre pack.
- Sold in Short, Regular, Wide and Large, so you can trade 1.5 ounces for six inches of length rather than buying the wrong pad.
- Still made in Seattle, and Therm-a-Rest's warranty service on punctured pads is the most-cited reason people buy a second one.
- 30-denier fabric top and bottom is thin for the price; on granite or pine duff it wants a groundsheet or a thin foam pad underneath.
- The NXT is quieter than the old XLite but not silent — the reflective film still crinkles when you roll over.
- At 20 inches wide the Regular is narrow; broad-shouldered sleepers end up with an arm on the ground and need the Wide.
- $210 for the Regular is roughly double what a comparable-R self-inflating pad costs, and the durability goes the other way.
Therm-a-Rest Trail Pro
- Matches an XLite's 3-inch loft and beats most pads at its price for R-value, at 4.4.
- The stretch-knit face is warm, quiet and grippy enough that a sleeping bag stays put on it.
- Foam core keeps working through a puncture, and the valve is the same field-serviceable design as the rest of the line.
- $160 undercuts every comparable air pad by $50 or more.
- 30 ounces is nearly two pounds, and the 11 × 8.8-inch packed size eats a lot of a 50-litre pack.
- Only two sizes — no short version, so a smaller sleeper carries a full-length pad.
- Takes real effort to roll tightly enough to get back into its own stuff sack.
- Self-inflation stalls well short of firm in cold weather; plan on topping it up by mouth.