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Note on sheet sizing!
The Core Sheet Insulated does not currently have the adjustable drawstring feature like our other sheets. The 25" sheet will fit the 25x77 mattress perfectly, but please note that while it does work on the 25x72 it will be a loose fit.
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Introducing the Core Bed! — The all-new 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 50d Pongee liner and supple new 30d Nylon Taffeta shell provide maximum home-like comfort.
Includes the Core Quilt 10°, Core Sheet Insulated, and a large mesh bag for long-term storage. Mattress and accessories sold separately.
Core Bed Features
Fast Footbox™
Without zippers or a complex convertible footbox, the Core Bed’s simple patent-pending Fast Footbox™ technology utilizes just one hook to quickly transform the footbox from "mummy mode" for maximum warmth to “wide mode” for maximum space.
Hook & Loop Attachments
To keep things lightweight and minimal, the Core Bed uses our proven clip system to connect the backpacking quilt to the separate fitted sheet and ensure a draft-free night of sleep.
Large Insulated Hood
The sheet’s roomy integrated hood insulates your head and arms and keeps your pillow in place throughout the night. Our insulated Core Sheet uses synthetic insulation, rated to 25°F.
Soft, Durable Fabrics
With its legendary soft sheet-like 50d Pongee liner and a new amazingly supple and durable 30d Taffeta shell, the Core Bed features our softest fabrics yet!
The Kylie-curve™
The 3/4 length baffle-backed Kylie-curve™ drawstring 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.
"Will the sheet fit my current mattress?"
Size Guide
Our sheets are designed to fit most standard size mattresses on the market—both rectangular AND tapered styles! They are available in 20", 25", and 30" widths. See our full size guide for specifics on sheet/mattress sizing.
What size Dry Sack do you need?
Shop Dry Sacks
Compression Dry Sacks are sold separately. You can expect your Light Bed (quilt + sheet) to compress down to about half the size of the Dry Sack itself.
We recommend the 15L Dry Sack for all sizes of the Core Bed 10°
Looking to ditch some ounces?
Check out our uninsulated version of the Core Sheet! Ideal for warmer trips or combined with an insulated hooded jacket, the uninsulated Core Sheets start at just 7 ounces. Compatible with all Core Quilts.
$70.00
Pairing your Core Quilt with one of our Core Sheets allows you to fully "tuck in" when temperatures drop.