Review · Outdoors & sports
Exped MegaMat review
A 4-inch single self-inflating mat with cored open-cell foam, an R-value of 8.1 and an included Top-Up Pump.
By the HearSmart research desk · Updated November 11, 2026
- Performance (40%)
- 9.1
- Ease of use (25%)
- 8.5
- Value (35%)
- 8.4
The MegaMat is Exped's flagship single camping mat and the warmest single pad on this list, with a listed R-value of 8.1 and a temperature rating of -40 °F. It uses 4 inches of open-cell polyurethane foam with horizontal air channels cored out, which lets it draw air in during self-inflation, purge air when packing and weigh less than solid foam. Exped describes the feel as soft and pressure relieving, suited to back and side sleepers, and you can firm it up with the included Top-Up Pump or soften it by pressing the one-way inflate flapper. Three sizes run from the 72 by 25.6 inch MW to the 77.6 by 30.3 inch LXW, and 3D vertical sidewalls keep the full width usable. The top fabric is recycled tricot and the materials are listed as PFAS free. The downsides are bulk, at 4 lbs 9 oz for the MW, and patchy stock across colors when we checked.
Who it is for
Car campers and overlanders who sleep cold
Price
$259.95 for the MW size when checked.
MEGAMAT 4.9 (16) Write a review Regular price $259.95
Quoted from the vendor pricing page on November 11, 2026.
Key features
- R-value 8.1 with a listed temperature of -40 °F
- 4-inch height of 16 kg/m³ open-cell PU foam with cored air channels
- Three sizes: MW 72 x 25.6 in, LW 77.6 x 25.6 in, LXW 77.6 x 30.3 in
- Includes a Top-Up Pump, temporary repair kit and SideWinder stuff sack
- 3D vertical sidewalls and a welded side handle
Strengths and weaknesses
- Strength: Highest R-value of the single pads we compared
- Strength: Recycled fabrics that Exped lists as PFAS free and bluesign approved
- Strength: 60-day returns and in-house gear repair at Exped USA
- Weakness: MW size weighs 4 lbs 9 oz and packs to 26.5 x 7.9 in
- Weakness: Some size and color combinations were sold out when we checked
- Weakness: Exped advises against electric pumps other than its own
Key facts
- Price: $259.95
- Thickness: 4 in
- R-value: 8.1
- Weight (MW): 4 lbs 9 oz
- Returns: 60 days
Where it ranks
Exped MegaMat is No. 1 in our Best Self-Inflating Camping Mattresses verdict.
Alternatives we scored
Visit expedusa.com · Questions or corrections: editorial@hearsmart.org