Core Bed I Zenbivy Sleeping Bag Systems

The Core Bed

Our simplest, softest, and most affordable backpacking bed.

Zenbivy comfort for use where weight and pack-size are not top priority!

With down or synthetic filling and a cozy pongee lining, the core bed offers maximum comfort at an affordable price.

Core quilt in 2 temperature ranges: Limit -4°C (down or synthetic) or -12°C (down) with easily adjustable fast footbox

Full-length core sheet with down or synthetic fiber-filled hood or non-insulated.

Combine a core quilt with a core sheet in any size to put together your personal core bed.

Core Bed | Zenbivy Sleeping Bag Systems
Core Bed I Zenbivy Outdoor Quilts, Mattresses & Sleeping Bag Systems

Shop Complete Core Bed Bundles

Skip building your setup from scratch. The Core Bed Bundle includes everything you need to get outdoors comfortably, whether you're backpacking or car camping. It's our softest, simplest, and most affordable complete Bed bundle.

Core Bed I Zenbivy Outdoor Quilts, Mattresses & Sleeping Bag Systems

Why is the Core Bed better than a traditional sleeping bag?

Our patented 2-piece sleeping bag is built just like your bed at home with a sheet below you and a quilt above. Even when fully zipped in, the quilt "floats" above you, letting you sleep in any position and giving you the freedom to move without feeling restricted.

Sleeping hot? Easily kick your arms and legs out or "throw the covers off" to get quick, cooling relief. Cold night? Clip the quilt to the sheet and tuck in under the hood to ensure a draft-free night. The versatility of the 2-piece Core Bed allows you to use it in a wide range of temperatures throughout the year.

Explore the Core Bed Features

Kylie Curve | Zenbivy Sleeping Bag Systems

Kylie-curve™

The patent-pending 3/4 length baffle-backed Kylie-curve™ drawstring cinches only the center portion of the quilt, so it comfortably seals in warmth around your shoulders but leaves the edges free to drape at your sides or tuck into the sheet’s hood to block drafts. 

Thermaly mapped duffle | Zenbivy Sleeping Bag Systems

Thermally-mapped baffles

We designed our quilts for thermal efficiency, distributing the down fill to provide the most warmth
where it's needed, with smaller baffles to minimize downshift. We focus primarily on keeping the heat at your core and feet, but provide ample insulation in every chamber for consistent warmth.

Semi rectanuglar design | Zenbivy Sleeping Bag Systems

Semi-rectangular design

Other quilts are commonly hourglass in shape, creating a pinch point that causes the quilt to grab
and twist as you move. Zenbivy quilts are semi-rectangular, providing you the space and freedom to move naturally-without constriction.

Zenbivy Core Bed, hood

Roomy Hood - Insulated or Uninsulated!

The sheet’s roomy integrated hood insulates your head and arms and keeps your pillow in place throughout the night.

Core Sheets are available with an insulated hood for full "mummy bag" warmth, or a lightweight uninsulated hood for use in warmer weather or with an insulated hooded jacket.

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 quilts
and sheets are more versatile since any clip quilt can be paired will any clip sheet, allowing you to mix and
match to build vour perfect setup.

Shop: Core Quilts

The Core Quilt is Zenbivy's simplest, softest, and most affordable backpacking quilt. Without zippers or a complex convertible footbox, the Core Quilt's simple patent-pending Fast Footbox™ utilizes just one hook to quickly transform the footbox from warm "mummy mode" to spacious “wide mode". The soft 50d Pongee liner and supple new 30d Taffeta shell provide maximum home-like comfort in the backcountry. Available in affordable 650-fill down and synthetic options.

Shop: Core Sheets

All clip quilts are compatible with all clip sheets!

Regardless of temperature rating, color, or size. The quilt is sized to fit you and the sheet is sized to fit your mattress.

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Core Quilt
Core Sheet
Weight -4°C Down
  • Medium: 708 g
  • Large: 793 g
  • 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: -4°C / 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
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