Review · Outdoors & sports
Exped MegaMat Duo review
A two-person self-inflating mattress with 4 inches of cored foam and a Top-Up Pump.
By the HearSmart research desk · Updated November 11, 2026
- Performance (40%)
- 8.9
- Ease of use (25%)
- 8.0
- Value (35%)
- 7.8
The MegaMat Duo is Exped's two-person version of its long-running MegaMat, and its main advantage for car campers is one continuous sleeping surface, with no seam between two pads. It is 4 inches of open-cell polyurethane foam with horizontal air channels, and Duo models now have 30% more foam coring for faster deflation, lower weight and a smaller packed size. Exped describes the feel as soft and pressure-relieving, a good fit for back and side sleepers, and you can firm it up with the included Top-Up Pump or let air out through the one-way valve. The 3D vertical sidewalls keep the edges full height, and two welded handles help when moving it in and out of a vehicle or rooftop tent. Exped USA lists LW+ and Queen sizes at $399.95, though several variants were sold out or low stock when we checked, and the product page we read did not state an R-value.
Who it is for
Couples in rooftop tents and big SUVs
Price
$399.95 for the LW+ or Queen size when checked.
MEGAMAT DUO 4.9 (21) Write a review Regular price $399.95
Quoted from the vendor pricing page on November 11, 2026.
Key features
- 4-inch mattress height of open-cell polyurethane foam
- Sleeps up to 2 people; LW+ and Queen sizes
- Included Top-Up Pump for adding air
- 3D vertical sidewalls that reduce tapering at the edges
- 2 welded side handles and a recycled 4-way stretch tricot top
Strengths and weaknesses
- Strength: One wide surface for two, with no gap between pads
- Strength: Duo models have 30% more foam coring for faster deflation and a smaller pack
- Strength: Exped USA runs in-house gear repair
- Weakness: Some colors and sizes were sold out or low stock when we checked
- Weakness: Exped's product page does not list an R-value
- Weakness: $399.95 is more than two single pads from some brands
Key facts
- Price: $399.95
- Thickness: 4 in
- Sleepers: 2
- Sizes: LW+, Queen
- Pump: Top-Up Pump included
Where it ranks
Exped MegaMat Duo is No. 7 in our Best Car Camping Mattresses verdict and No. 4 in Best Self-Inflating Camping Mattresses.
Alternatives we scored
Visit expedusa.com · Questions or corrections: editorial@hearsmart.org