Mattresses & Storage Back in Stock!

Just Landed: the 2026 SoftTop™ Pillow

10% off

UL Dirtbed™ + Fast Sheet Bundle

Sale price £582.93 Regular price £647.70

Size Guide

Return & Exchange Policy

We offer exchanges and free tracked returns on UK orders within 30 days from the date your order was delivered.

International Duties & Taxes

There are no additional duties or taxes for UK customers.

*All components must be purchased together to receive 10% off. Discount is applied automatically.

Description

Ultralight performance—without the premium ultralight price tag.

This all-in-one complete bed bundle includes an UL Dirtbed™ Quilt, uninsulated Fast Sheet, an Ultralight Mattress with included inflation storage sack, a 2-piece Minimalist Pillow made up of an adjustable air bladder and pillowcase to stuff with your down jacket in the field, and a Dry Sack for waterproof storage.

All individual 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

20" sheets fit 20x72 mattresses
25" sheets fit all 25x72 and 25x78 mattresses (can fit 20x72 as well if needed)

Regular pillowcases fit the Regular bladder
Large pillowcases fit the Large bladder

Dry Sack fits the quilt, sheet, and pillow

7L Dry Sack for all sizes of the UL Dirtbed™ -4°C down
10L Dry Sack for all sizes of the UL Dirtbed™ -12°C down

  • The Sweet Spot of Ultralight Performance and Value

    The UL Dirtbed™ delivers ultralight performance without the premium ultralight price tag. By balancing weight savings with value-driven materials, it offers the best bang for your buck in the ultralight category.

    Starting at just 3 ounces, the uninsulated Fast Sheet is the lightest way to block all drafts and eliminate all constriction.

  • 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.

  • Minimalist Pillow

    The 2-piece Minimalist 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 air bladder for ultralight comfort! 

    *Down jacket not included

  • 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.

    • 7L for UL Dirtbed™ 25°F
    • 10L for UL Dirtbed™ 10°F

Product Specs

A table comparing the facets of 4 products
Facet
UL Dirtbed™ Quilt
Fast Sheet
Ultralight Mattress
Dry Sack
Weight
Weight

-4°C Down

  • Regular: 567 g (1 lb 4 oz)
  • Large: 652 g (1 lb 7 oz)
  • XL: 737 g (1 lb 10 oz)

-12°C Down

  • Regular: 850 g (1 lb 14 oz)
  • Large: 964 g (2 lb 2 oz)
  • XL: 1.11 kg (2 lb 7 oz)

20": 86g (3oz)
25": 94g (3.3 oz)

Tapered

20x72: 482 g (1 lb 1 oz)

25x72: 595 g (1 lb 5 oz)

25x78: 623 g (1 lb 6 oz)

Rectangular

25x72: 680 g (1 lb 8 oz)

25x78: 709 g (1 lb 9 oz)

4L: 54 g (1.9 oz)

7L: 56 g (2.0 oz)

10L: 65 g (2.3 oz)

15L: 79 g (2.8 oz)

20L: 96 g (3.4 oz)

R-Value
R-Value
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4.8
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Limit / Comfort Rating
Limit / Comfort Rating

-4°C Down: -4°C (25°F) / 2°C (35°F)

-12°C Down: -12°C (10°F) / -7°C (20°F)

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Sheet Sizing
Sheet Sizing
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20": Fits mattresses up to 21” wide x 3.5" thick (53 x 9 cm)

25": Fits mattresses up to 26” wide x 3.5" thick (66 x 9 cm)

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Fill/Insulation
Fill/Insulation

750+ FP Ultrasonic Muscovy™ Down (85/15), no water-resistant treatment (additive-free)

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Two layers of mylar foil

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Fill Weight
Fill Weight

-4ºC Down

  • Regular: 343 g
  • Large: 391 g
  • XL: 451 g

-12°C Down

  • Regular: 618 g
  • Large: 721 g
  • XL: 836 g
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Fabrics
Fabrics

Liner: 15D Nylon Taffeta, coating-free, cire, C0 DWR (PFAS-free), 33 gsm

Shell: 15D Nylon Taffeta, coating-free, cire, C0 DWR (PFAS-free), 33 gsm

15D Nylon Taffeta, coating-free, non-cire, CO DWR (PFAS-free)

Top & Bottom: Embossed 20D Recycled Polyester Tafetta

Main: 30D Ripstop Polyester

Base: 75D Polyester

Packed Size
Packed Size
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20x72: 16 x 8 cm (6.5" x 3")

25x72: 20 x 8 cm (8" x 3")

25x78: 20 x 9 cm (8" x 3.5")

You can expect your quilt and sheet to compress down to about half the size of its recommended Dry Sack size.

Quilt Dimensions
Quilt Dimensions

Regular: 72” x 54” (183 x 137 cm)

Large: 80” x 58” (203 x 147 cm)

XL: 84” x 64” (213 x 163 cm)

*These are the cut fabric dimensions. Filled, lofted quilts will be several inches shorter in both length and width.

All sizes measure 42" (106 cm) in length

20x72: 51 x 183 x 8 cm (21" x 72" x 3")

25x72: 63 x 183 x 8 cm (25" x 72" x 3")

25x78: 63 x 198 x 8 cm (25" x 78" x 3")

*Tapered Mattresses have a 12cm taper, meaning the foot end is 12cm narrower than the full width.

4L: 44 cm x 13 cm diameter

7L: 46 cm x 16 cm diameter

10L: 51 cm x 18 cm diameter

15L: 59 cm x 21 cm diameter

20L: 59 cm x 24 cm diameter

Compatible With
Compatible With

All clip sheets regardless of temperature rating, size, color, or style/year

All clip quilts regardless of temperature rating, size, color, or style/year

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Includes
Includes

Quilt and mesh storage sack

Fast Sheet only

Mattress, waterproof inflation storage sack, and repair kit

Dry Sack only. Compression Caps sold separately.