Shop
  • Why Zenbivy?
  • Why it's better | Zenbivy Sleeping Bag Systems

    Why Zenbivy Is Better

  • Read Media Reviews | Zenbivy Sleeping Bag Systems

    Read Media & Press Reviews

  • FAQ | Zenbivy Sleeping Bag Systems

    Frequently Asked Questions

  • About down | Zenbivy Sleeping Bag Systems

    About Zenbivy

  • Support
  • Core Bed -4°C

    The Core Bed is Zenbivy's simplest, softest, and most affordable backpacking bed.

    Without zippers or a complex convertible footbox, the Core Bed’s simple patent-pending Fast Footbox™ utilizes just one hook to quickly transform the footbox from "mummy mode" for maximum warmth to “wide mode” for maximum space. The proven draft-free clip system keeps things minimal and lightweight while the soft 50 d Pongee liner and supple new 30 d Nylon Taffeta shell provide maximum home-like comfort.

    Includes the Core Quilt -4 °C, Core Sheet Insulated, and a large mesh bag for long-term storage. Mattress and accessories sold separately.

    Explore the features


    Materials

    Lightweight Clip Attachement | Zenbivy Sleeping Bag Systems

    Lightweight clip attachments

    Our proven draft-free color-coded clip system is nearly weightless compared to zippers. Our clip quiltsand sheets are more versatile since any clip quilt can be paired will any clip sheet, allowing you to mix andmatch to build vour perfect setup.

    Synthetic Fill Material | Zenbivy Sleeping Bag Systems

    1 D/3D XD Synthetic

    Built for warmer nights, tighter budgets, and personalpreferences, we've used a polyester synthetic blendthat's as soft as it gets. So soft in fact that you'll swearit's downl



    core bed
    .
    Core Quilt
    Core Sheet
    Weight -4°C Down
    • Medium: 708 g
    • Large: 793 g/li>
    • XL: 907 g
    -12°C Down
    • Medium: 1.02 kg
    • Large: 1.19 kg
    • XL: 1.36 kg
    -4°C Synthetic
    • Medium: 992 g
    • Large: 1.16 kg
    • XL: 1.30 kg
    Uninsulated
    • 51 cm: 173 g
    • 64 cm: 198 g
    • 76 cm: 221 g
    Down
    • 51 cm: 281 g
    • 64 cm: 317 g
    • 76 cm: 351 g
    Synthetic
    • 51 cm: 371 g
    • 64 cm: 419 g
    • 76 cm: 451 g
    Limit / Comfort Rating -4°C Down & Synthetic: -4°C / 2°C

    -12°C Down: -12°C / -7°C
    Uninsulated: N/A

    Down & Synthetic: 25°F (-4°C) / 35°F (2°C)
    Fill Down: 650 fill-power RDS compliant 80/20 duck down

    Synthetic: 240g 1D/3D XD Polyester batting
    Uninsulated: N/A

    Down: 650 fill-power RDS-compliant 80/20 duck down

    Synthetic: 240g 1D/3D XD Polyester batting
    Fill Weight -4°C Down
    • Medium: 336 g
    • Large: 379 g
    • XL: 438 g
    -12° Down
    • Medium: 641 g
    • Large: 751 g
    • XL: 860 g
    Core Sheet Down
    • 51 cm: 63 g
    • 64 cm: 66 g
    • 76 cm: 74.5 g
    Fabric Shell: 30D Nylon Taffeta 350T, coating-free, cire, fluorocarbon-free DWR, 50gsm

    Lining: 50D Polyester Pongee 300T, coating-free, cire, 62gsm
    Shell: 30D Nylon Taffeta 350T, coating-free, cire, fluorocarbon-free DWR, 50gsm

    Lining: 50D Polyester Pongee 300T, coating-free, cire, 62gsm
    Sheet Sizing - 51 cm: Fit mattresses up to 53 cm x 183 x 9+ cm

    64 cm: Fits mattresses up to 66 x 198 x 9+ cm

    76 cm: Fits mattresses up to 76 x 203 x 9+ cm
    Recommended Dry Sack Size All -4°C Down: 10L
    All -12°C Down: 15L
    All -4°C Synthetic: 15L

    Dry Sack sold separately
    -