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  • Why it's better | Zenbivy Sleeping Bag Systems

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  • FAQ | Zenbivy Sleeping Bag Systems

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    About Zenbivy

  • Support
  • Ultralight Mattress

    Ultralight, compact, and uncommonly supportive

    Zenbivy’s lightest and most packable backpacking mattress. The Ultralight Mattress is uncommonly supportive and delivers R5 warmth.

    Includes Inflation Dry Sack and repair kit
    R-value: 4.8

    Weight

    183 x 51 cm: 510 g
    183 x 64 cm: 590 g
    196 x 64 cm: 709 g

    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

    Materials

    Mattress Materials
    Top & Bottom: embossed 20D recycled polyester tafetta top & bottom
    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

    Size



    Explore the materials

    Mylar Layers I Zenbivy Sleeping Bag Systems

    Mylar layers

    Mylar is a popular insulation choice for ultralight camp mattresses, but unlike other ultralight mattresses that are crinkly, loud, and provide insufficient warmth, our mattress's mylar layers “float” within to quietly reflect heat and provideR5 warmth for EN/ISO-matched thermal performance.

    20 D Taffeta I Zenbivy Sleeping Bag Systems

    Embossed 20D Recycled Polyester Taffeta

    Our embossed 20D Recycled Polyester Taffeta is laminated, not coated, making it stronger and more durable than other ultralight mattress fabrics.


    all-mattresses
    Model Weight Inflated Dimensions Packed Size Insulation
    Flex Air Mattress M 51 x 183 cm 567 g 51 x 183 x 8 cm 16 x 8 cm R 4.8
    MW 64 x 183 cm 680 g 64 x 183 x 8 cm 20 x 8 cm
    L 64 x 198 cm 709 g 64 x 198 x 8 cm 20 x 9 cm
    Ultralight Mattress M 51 x 183 cm 482 g 51 x 183 x 8 cm 16 x 8 cm R 4.8
    MW 64 x 183 cm 595 g 64 x 183 x 8 cm 20 x 8 cm
    L 64 x 198 cm 623 g 64 x 198 x 8 cm 20 x 9 cm
    Light Mattress M 51 x 183 cm 650 g 51 x 183 x 8 cm 18 x 10 cm R 5.2
    MW 63 x 183 cm 680 g 63 x 198 x 8 cm 23 x 13 cm
    L 63 x 198 cm 770 g 63 x 198 x 8 cm 23 x 13 cm
    XL 76 x 198 cm 1040 g 76 x 198 x 8 cm 25 x 13 cm
    Base Mattress M 51 x 183 cm 793 g 51 x 183 x 4 cm 25 x 15 cm R 4.7
    MW 63 x 183 cm 992 g 63 x 183 x 8 cm 33 x 15 cm
    L 63 x 198 cm 1080 g 63 x 198 x 4 cm 33 x 20 cm
    XL 76 x 198 cm 1270 g 76 x 198 x 4 cm 38 x 20 cm
    Flex™ Mattress M 51 x 183 cm 964 g 51 x 183 x 4 cm 25 x 15 cm R 5.0
    MW 63 x 183 cm 1100 g 63 x 183 x 4 cm 33 x 15 cm
    L 63 x 198 cm 1220 g 63 x 198 x 4 cm 33 x 20 cm
    XL 76 x 198 cm 1670 g 76 x 198 x 4 cm 38 x 20 cm
    Flex™ 3D Mattress L 66 x 198 cm 1870 g 66 x 198 x 8 cm 33 x 20 cm R 7.4
    XL 76 x 198 cm 2130 g 76 x 198 x 8 cm 38 x 20 cm
    Double Flex™ 3D Mattress DL 132 x 198 cm 3490 g 132 x 198 x 8 cm 66 x 20 cm R 7.4