Core Sheet Double
Core Sheet Double - 25°F Synthetic / 50" / Forest/Green is backordered and will ship as soon as it is back in stock.
Return & Exchange Policy
Return & Exchange Policy
International Duties & Taxes
International Duties & Taxes
Size Guide
The quilt is sized to fit you. The sheet is sized to fit your mattress.
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CLIP quilts and sheets are sold separately.
Sizes can be mixed & matched to create the fit that’s right for you and your mattress. All clip quilts are compatible with all clip sheets regardless of size, style, or temperature rating.
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ZIP quilts and sheets are sold together.
Your mattress may determine what size quilt you get. For example, if your mattress requires a 30” sheet you will need to get the XL 30” ZipBed which comes with an XL quilt.
If you are an "active" sleeper or have a "wide" sleep position, consider sizing up to accommodate your sleep style.
When in doubt, size up. Unlike mummy bags, there's no thermal disadvantage to a larger size Zenbivy because the quilt is always free to wrap snuggly around you. Bigger is always more comfortable and just as warm.
Quilt Sizing
On the chart below, locate your height and overarm measurement. To get your overarm measurement, stand with your arms hanging relaxed by your sides and loosely measure around the broadest part of your chest and arms.

Sheet Sizing
Zenbivy sheets are designed to fit most standard size mattresses on the market, both rectangular and tapered styles.
Sheets can fit rounded-edge mattresses up to 4” thick and 3D-style mattresses up to 3.5” thick.
25" sheets cinch to fit 20x72 mattresses.
Quilt Dimensions
Backpacking quilts are measured by the cut-fabric dimensions. Filled and lofted quilts will be shorter/narrower. On average:
- 25°F quilts are approximately 2” shorter in both directions, for all sizes
- 10°F quilts are approximately 4” shorter in both directions, for all sizes
Convertible quilts are 6” longer when open/flat.
Circumference
The maximum circumference around your shoulders/hips/feet for each size combination when the quilt is attached to the sheet.


Dry Sack Sizing
Both the quilt and sheet will fit in the recommended Dry Sack size and there will still be room to throw in your Zenbivy SoftTop™ Pillow or a down jacket.
You can expect your bed to compress down to about half the original size of the Dry Sack. Example: 7L compresses down to 3-4L, 10L down to 5L, etc
Description
Description
The Zenbivy Core Sheet Double holds two mattresses securely together and provides cozy comfort with a DWR-free 50D Pongee lining and lightweight 20D Nylon shell.
Specifications
Specifications
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Limit/Comfort
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Weight
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Compatible With
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Sheet Sizing
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Fill
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Fill Weight
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Fabric
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Includes

Works on One Mattress, or Two!
The Core Sheet Double works on one double-wide mattress, but it can also hold two single mattresses together without them overlapping or sliding apart. Three attachment points hold both mattresses securely in place but are easily removed for use with one big mattress.

Double-Wide Insulated Hood
The integrated, insulated hood on the double sheet is roomy and warm. The hood also functions as a headboard to keep both pillows on the mattress.
Explore the Materials
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50D Polyester Pongee
Our legendary 50D Pongee fabric is pure luxury. It's both durable, soft and—most importantly—has a similar feel to a sheet you would use at home, bringing a familiar kind of comfort to camp.
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20D Nylon Taffeta
20D fabrics are much softer than traditional ultralight technical fabrics while being only a fraction heavier. They’re buttery-smooth, comfortable, and durable.
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Synthetic Hood
Built for warmer nights, tighter budgets, and personal preferences, we've used a polyester synthetic blend that's as soft as it gets. So soft in fact that you'll swear it's down!
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Lightweight Clip Attachments
Our color-coded clip closures are nearly weightless and proven draft-free.

Create a Core Bed Double
Pair your Core Sheet Double with a Core Quilt Double to create a luxurious camp bed for two!
The quilt clips to the sheet to block drafts and eliminate all constriction, while the sheet holds two mattresses securely together, insulates your head, and keeps both pillows from falling off the mattress.
*Core Quilt Double sold separately.
Core Quilt Double - 25°F Down / One Size / Forest/Green is backordered and will ship as soon as it is back in stock.
Complete Your Core Bed Double Set Up
Pair your Core Bed Double with a mattress, pillows, and a dry sack to complete your Zenbivy sleep system.