Flex Air Mattress

All-Season Warmth — Only mattresses with an R-value 5 or greater will meet the thermal performance of EN-rated sleeping bags. Most mattresses on the market today that are advertised as “3-season” do not provide the warmth required to match EN-rated bags. The Zenbivy Flex™ Air Mattress has an R-value 5 for EN-matched performance and all-season warmth: no cold spots.

Exclusive 4-way stretch top — All other camp mattresses use tightly woven fabrics that do not stretch. These stiff surfaces transfer weight instead of absorb it, resulting in a “bouncy” mattress. The Flex™ Air Mattress uses our exclusive 20D 4-way stretch fabric top that forms to your shape and movement, both minimizing weight transfer and relieving pressure points.

Quiet mylar insulation — Mylar is a popular lightweight insulation choice, but unlike other ultralight mattresses that are crinkly, loud, and provide insufficient warmth, the Zenbivy Ultralight Mattress has mylar layers that “float” within to quietly reflect heat and provide full R5 warmth for EN/ISO-matched thermal performance.

Tapered design — By trimming off the corners you won’t be sleeping on, the Ultralight Mattress’s tapered shape saves weight and cuts unnecessary bulk so it’s more compact and lighter in your pack.

High-speed valve — The Ultralight Mattress features a brand new high-speed valve. It’s flush and it’s larger so it inflates faster and dumps air more easily. Plus, it’s replaceable and repairable should you ever need it.

Dual-purpose inflation & waterproof storage sack — The Ultralight Mattress includes an inflation sack that doubles as waterproof storage. The waterproof closure is a simple twist-and-cinch, keeping the weight at a mere 1 ounce while ensuring your mattress is dry for camp. Perfectly sized for fast, breathless inflation, just couple the inflation sack to the mattress valve and push air through.

Laminated fabrics — Other ultralight mattresses use coated fabrics. These can break down over time, making them less durable and, therefore, less reliable. We laminate a PU (polyurethane) membrane to our fabrics. This separate membrane does not break down and the welds are stronger, resulting in a more durable and long-lasting mattress.

R-value: 5
(Note that only mattresses with an R-value of 5 or greater will deliver full temperature rating performance from EN-rated sleeping bags)

Weight
183 x 51 cm: 570 gms
183 x 64 cm: 680 gms
196 x 64 cm: 710 gms

Packed Size
183 x 51 cm: 16 x 8 cm
183 x 64 cm: 20 x 8 cm
196 x 64 cm: 20 x 9 cm

Mattress Materials
Top: 4-way stretch 20D Recycled Polyester knit
Bottom: 20D Recycled Polyester Tafetta
Insulation: Mylar Foil

Inflation Dry Sack Materials
Fabric: 30 D Ripstop Nylon, 75 D Polyester
Top Closure: 420 D Double Side TPU, 20 mm Buckle, 20 mm D-Ring Release Valve