Insulation and test basis
Check the published R-value and its test basis. Thickness and a soft surface do not establish how well a mat insulates.
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Thermarest / Sleeping mats
Therm-A-Rest NeoAir XTherm NXT Sleeping Mat - Large - Previous Model
Sleeping mats
Balance insulation, sleeping width, packed bulk and repairability, not thickness alone.
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Source product imagery; colour and included accessories may differ by configuration. Image source
NZ$699.99
Listed NZD item price; delivery and offer conditions require confirmation
Further Faster · Listed as unavailable
Recorded 8 Oct 2026 · NZ source
Not live pricing or stock. Check the exact model, size, delivery and offer conditions before purchasing.
- Published R-value
- 7.3 (source table; confirm selected size)
- Weight (source basis)
- 0.57 kg (source table; confirm selected size)
- Packed dimensions
- 28 cm x 13 cm (source table; confirm selected size)
NZ retailers & configurations
Further Faster · Listed as unavailable · Recorded 8 Oct 2026. Check current price, delivery and terms at source
Sleeping mats buying advice
Before you buy
Width where you need it
Compare shoulder width, length and shape with your sleep position and tent floor. Wide mats can change how many sleepers fit.
Your transport and repair plan
Check packed dimensions, weight, valve type and compatible repair supplies. A comfortable car-camping mat may be bulky for backpacking.
From first use to the next trip
Use, care & repair
01Check before a trip
Inflate as instructed and test the mat overnight at home. Inspect the valve and surface, and locate the model-specific repair instructions.
02Protect the surface
Clear sharp objects and follow inflation limits. Use only a compatible pump or inflation sack; do not assume every adapter fits.
03Store for the construction
Clean and dry as directed. Air mats and self-inflating foam mats can have different long-term storage and valve-position requirements.
Choose a camping mat
Read the guideCommon buying questions
Good to know
Is a thicker mat necessarily warmer?
No. Check a published insulation value and its test basis rather than using thickness as a warmth rating.
Will two wide mats fit my tent?
Compare their actual dimensions with the usable inner floor, including tapered corners and door space. Nominal person ratings are not enough.
Does losing firmness overnight always mean a puncture?
Not always. Temperature changes and valve issues can also affect firmness. Use the manufacturer's troubleshooting procedure before choosing a repair.
Keep your options open
Compare related equipment
Other catalogue models in the same equipment category, not verified equivalents or a ranked recommendation. Prices and availability are recorded snapshots.
Outdoor Next's buying guidance is editorial research, not a hands-on test or owner rating. Manufacturer resources and external reviews retain their own authorship and terms.
Full specifications & source notes
Neptune · Further Faster · Recorded 8 Oct 2026
- Published R-value
- 7.3 (source table; confirm selected size)
- Thickness
- Not recorded
- Weight (source basis)
- 0.57 kg (source table; confirm selected size)
- Dimensions
- Not recorded
- Packed dimensions
- 28 cm x 13 cm (source table; confirm selected size)
- Materials
- Nylon, Polyurethane (source table; confirm selected size)
- Insulation
- Not recorded
Record priority-furtherfaster-variant-43846068306144 · SKU TMNX11635
Additional source notes
Public source catalogue reviewed on 8 October 2026. Model-table specifications may require size confirmation. Shipping-weight metadata is excluded. Image source does not imply an open licence.