Ultralight Backpacking System
Ultralight Backpacking System 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
*All components must be purchased together to receive 15% off. Discount is applied automatically at checkout. Offer not valid during sales and cannot be combined with other discounts.
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 Ultralight Backpacking System is our lightest, most premium, complete backpacking sleep system for backpackers seeking ultralight comfort and performance.
This all-in-one sleep system includes an Ultralight Quilt, Ultralight Sheet, an Ultralight Mattress with included inflation storage sack, an Ultralight Pillow with an adjustable air bladder and pillowcase to stuff with your down jacket in the field, and a Dry Sack for fully-welded, waterproof storage.
All product specs can be found at the bottom of this page. Select your sizes and colors from the drop-down menus before adding the bundle to your cart.
Sizing Support
Sizing Support
25" sheets fit all sizes of the Ultralight Mattress, including the 20x72
Regular pillowcases fit the Regular bladder
Large pillowcases fit the Large bladder
4L-7L Dry Sack for all sizes of the Ultralight Bed 25°F (size up to 7L for the XL)
15L Dry Sack for all sizes of the Ultralight Bed 10°F
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Our Lightest, Most Premium Bed
With soft feather-light 10D Pertex® Quantum fabrics, premium 900FP down, and patented comfort features that are inherently light, it turns out ultralight can be ultra-comfortable.
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Ultralight & Uncommonly Supportive
The offset air cells create a diagonal baffle pattern that causes the mattress to twist against your body’s natural fold lines rather than collapse into them like horizontal and vertical baffles, resulting in a more supportive mattress.
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Customizable Ultralight Pillow
The Ultralight Pillow includes a removable pillowcase and an adjustable air bladder, letting you customize both height and firmness. Layer your down jacket or other soft clothing on top of the aid bladder for ultralight comfort!
*Down jacket not included
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Fully-Welded, Waterproof Storage
The Zenbivy Dry Sacks feature fully welded seams for a long-lasting watertight seal, a high-speed mechanical valve for instant compression, and durable yet lightweight construction. In other words: it's the best dry sack on the market.
- 4L - 7L for Ultralight Bed 25°F
- 10L for Ultralight Bed 10°F