UL Dirtbed™ + Fast Sheet
Select your color, temp/fill, and sizes from the dropdown menus.
Return & Exchange Policy
Return & Exchange Policy
International Duties & Taxes
International Duties & Taxes
Size Guide
Overview
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.
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Zip quilts and sheets are sold together.
Regular, Large, and XL refer to the quilt size. 25" or 30" refers to the sheet size.
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.
Sheet Guide for Thick 3D-Style, Non-Zenbivy Mattresses
Below is a list of common thick 3D-style mattresses and the Zenbivy sheet size each requires, if supported.
| Mattress | Size | Dimensions | Required Zenbivy Sheet Size |
| Therm-a-Rest NeoLoft | Regular | 22" x 73" x 4.6" | 25" |
| Regular Wide | 26" x 73" x 4.6" | 30" | |
| Large | 26" x 78" x 4.6" | 30" | |
| Exped MegaMat/DeepSleep/LuxeMat | Medium Wide | 25.6" x 72" x 4" | 30" |
| Long Wide | 25.6" x 77.6" x 4" | 30" | |
| Long Xtra Wide | 30.3" x 77.6" x 4" | Overland ZipBed | |
| Exped MegaMat Max | Medium Wide | 25.6" x 72" x 6" | Overland ZipBed |
| Long Wide | 25.6" x 77.6" x 6" | Overland ZipBed | |
| Long Xtra Wide | 30.3" x 77.6" x 6" | Overland ZipBed |
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 UL Dirtbed™ delivers ultralight performance without the ultra-premium price tag. By balancing weight savings with value-driven materials, it offers the best bang for your buck in the ultralight category.
Includes a UL Dirtbed™ Quilt + uninsulated Fast Sheet. Mattress and accessories sold separately.
Product Specs
New to Zenbivy?
Discover how our patented 2-piece design blocks drafts without restricting movement—so sleeping outdoors feels just like your bed at home.
Complete Your UL Dirtbed™ Setup
Grab a mattress, pillow, and dry sack to complete your Zenbivy sleep system.
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Regular priceFrom £189.95Unit price -
Regular price £44.90Unit price -
