Source-linked specifications for the HEST Dually — Long. This is a detailed camping mattresses record, checked on 2026-10-30; price and live stock are not verified.
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What the specs mean
No verified R-value is recorded for this variant. Check its stated test method: ASTM F3340 values are useful for comparing insulation under controlled conditions, not a guaranteed temperature limit. Thickness describes cushioning and cannot substitute for R-value. This version is listed at 50.0 in (127 cm) wide; compare that with the tent's narrowest usable floor width.
Read the exact variant
Long is the recorded option. Other sizes or revisions may have different dimensions, weight, or test labels.
Reported specifications
Unit conversions are calculated from the source value. Open the source tag for the originally published number.
| Specification | Manufacturer or retailer value |
|---|---|
| Shape | rectangular [pad-src-060] |
| Construction | solid_foam [pad-src-060] |
| Length | 78 in [pad-src-060] |
| Width | 50 in [pad-src-060] |
| Thickness | 3.9 in [pad-src-060] |
| Packed length | 78 in [pad-src-060] |
| Foam type | two-layer memory foam [pad-src-060] |
| Top fabric | stretch nylon twill [pad-src-060] |
| Bottom fabric | PU-coated nylon [pad-src-060] |
| Cover removable | Yes [pad-src-060] |
| Weight lb | 24 lb [pad-src-060] |
| Packed width in | 25 in [pad-src-060] |
| Packed height in | 7.8 in [pad-src-060] |
A blank or unverified value means the dataset cannot support a number; it does not mean zero. Each source tag opens the record used for that field.
Check a current Amazon search
Search for HEST Dually and check the exact size, revision and seller details before ordering.
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Compare a size against its own record. Shared family names do not prove identical weight or dimensions.
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Verification limits
Evidence basis: manufacturer_declared. US market: confirmed. Listing status: listed. These labels do not establish current stock.
Unverified fields: packed_weight_g, r_value, r_value_standard
- R-value unavailable in REI product table. HEST collection copy says 11.8 while product-specific evidence is absent; do not use inferred R-value.
Where these facts came from
- Dually — REI Co-op, accessed 2026-10-30 [pad-src-060]
- Dually - manufacturer listing — HEST, accessed 2026-10-30 [pad-src-091]
We link to a seller or manufacturer for verification and do not handle purchases, delivery, or returns. Check current terms and the exact SKU with that seller.
Questions to ask before buying
Is the listed price current?
No price or live stock data is included. Use the official product link for the current listing.
Does a nominal capacity or temperature label guarantee fit or warmth?
No. Compare exact dimensions and tested values where available, then allow for real-world conditions.
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