Ultralight. Supremely Comfortable.

The Zenbivy Ultralight Bed is the most comfortable and full-featured legitimately ultralight backpacking sleep system out there. With soft featherlight fabrics and patented comfort features that are inherently light, it turns out ultralight can be ultra-comfortable.

New 950FP+ down, PrimaLoft® Gold synthetic, and new Pink/Gold colorway arriving in February!

Pioneering the Future of Ultralight Insulation

In 2025, Zenbivy was the first to introduce Muscovy to the outdoor market—now, we’ve expanded that innovation even further, pioneering ExpeDRY™ Muscovy 900FP from ALLIED Feather + Down and Ultrasonic Muscovy™ 950FP+ from Softie.

We're also introducing our first-ever synthetic Ultralight Bed powered by PrimaLoft® Gold insulation. Alongside our tried-and-true ExpeDRY™ Goose 900FP, you'll have four premium insulations to choose from!

SOFTIE

Ultrasonic Muscovy™ 950FP+

Arriving in February

The highest lofting Muscovy down ever! At an unmatched fill power, Ultrasonic Muscovy™ 950FP+ delivers maximum warmth at the lowest weight, pushing the limits of what’s possible with natural down.

Allied feather + down

ExpeDRY™ Muscovy 900FP

Zenbivy is proud to be the first to bring ExpeDRY™ Muscovy from ALLIED Feather + Down to the outdoor market. By combining the next generation of water-resistant down technology with the lofty resilience of Muscovy down, ExpeDRY™ Muscovy sets a new benchmark in warmth, performance, and sustainability.

PrimaLoft®

PrimaLoft® Gold

Arriving in February

Introducing our first-ever synthetic Ultralight Bed! The industry leader in synthetic performance and technology, premium PrimaLoft® Gold insulation is thoughtfully engineered from ultra-fine fibers, delivering lightweight, thermally-efficient performance.

Allied feather + down

ExpeDRY™ Goose 900FP

ExpeDRY™ Goose from ALLIED Feather + Down pairs the proven performance of premium goose down with next-generation, chemical-free water-resistant technology. For those who prefer goose down—or are sensitive to duck—this premium fill offers ultra-clean, time-tested reliability.

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*New Ultrasonic Muscovy™ 950FP arriving in February. Current Ultrasonic Muscovy™ quilts and sheets in stock are 900FP.

Breakdown of Zenbivy Ultralight Bed system showing 3 oz UL Sheet and 17 oz UL Quilt combining to create a 20 oz lightweight modular sleep system for backpacking.
Unlike sewn footboxes that restrict your movement and do not vent, Zenbivy’s Fast Footbox™ uses a single clip that allows it to expand for more space or narrow for more warmth.

Fast Footbox™

Unlike sewn footboxes that restrict your movement and do not vent, Zenbivy’s patent-pending Fast Footbox™ uses a single clip that allows it to expand for more space or narrow for more warmth.

Zenbivy sheets are designed to fit most standard size mattresses on the market, including rectangular and tapered styles.

Fits Most Mattresses

Zenbivy sheets are designed to fit most standard size mattresses on the market, including rectangular and tapered styles.

Complete Ultralight Bed Bundles

Get everything you need in one complete bed bundle—quilt, sheet, mattress, pillow, and dry sack. Just choose your sizes & colors!

Zenbivy Ultralight Bed compressed into dry sack next to Nalgene bottle, illustrating compact, lightweight design ideal for backpackers minimizing bulk and weight.

Ultra-Compact

Starting at just 20oz and compressing down to the height of a Nalgene bottle, the ultra-compact Ultralight Bed is optimized for backpackers looking for comfort at the lowest possible weight and bulk.

Dry Sack and Compression Caps sold separately.

Explore More Features

Ultralight Zenbivy sleeping bag system with gray and white quilt, displayed at high-altitude campsite by glacial lake and rocky cliffs.

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.

Explore the Materials

  • Close-up of Zenbivy Ultralight Bed's 10D Pertex® Quantum fabric, lightweight and soft backpacking quilt material designed for breathability and comfort.

    10D Pertex® Quantum

    Other backpacking quilts use thin, sticky fabrics that cling to you like plastic wrap in damp or warm conditions. To maximize comfort, Zenbivy Ultralight Quilts use premium “full-dull” Pertex® Quantum. Feather-light and soft to the touch, it's fabric that feels like fabric, not a trash bag.

  • Detail of Zenbivy quilt clip system with yellow strap, securing the quilt to sheet for a draft-free, modular backpacking sleep setup.

    Lightweight Clip Attachments

    Our color-coded clip system is nearly weightless compared to zippers and proven draft-free.

Explore the Fills

  • Ultrasonic Muscovy™ 950FP+

    The pinnacle of natural performance, 950FP Ultrasonic Muscovy™ from SOFTIE delivers uncompromised loft, durability, and stability. Washed using a patented Ultrasonic Washing process, it exceeds industry standards of cleanliness and preserves the down’s pure, additive-free loft for long-term performance.

  • ExpeDRY™ Muscovy 900FP

    ExpeDRY™ Muscovy from ALLIED Feather + Down combines the unmatched loft and durability of Muscovy down with next-generation, water-resistant technology. Using a chemical-free bonding of non-toxic gold particles, ExpeDRY™ accelerates evaporation so insulation stays drier and dries up to 50% faster than traditional chemically-treated downs.

  • ExpeDRY™ Goose 900FP

    ExpeDRY™ Goose from ALLIED Feather + Down combines the trusted, proven performance of goose down with next-generation water-resistant technology. Using a chemical-free bonding of non-toxic gold particles, ExpeDRY™ accelerates evaporation so insulation stays drier and dries up to 50% faster than traditional chemically-treated downs.

    For those who prefer the proven reliability of goose down—or are sensitive to duck down—this premium fill delivers the cleanest, most time-tested performance in the lineup.

  • PrimaLoft® Gold Synthetic

    PrimaLoft® Gold sets the benchmark for synthetic performance—delivering the same warmth as standard PrimaLoft® at a lighter weight. With ultra-fine fibers that efficiently trap heat, it offers down-like warmth-to-weight for ultralight performance without compromise.

A table comparing the facets of 3 products
Facet
Ultralight Quilt
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Ultralight Sheet
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Fast Sheet
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Color
Color
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Price
Price
Regular price From $329.00
Regular price From $89.00
Regular price $69.00
Weight
Weight

25°F Down, 900FP

  • Regular: 1 lb 1 oz (482 g)
  • Large: 1 lb 3 oz (538 g)
  • XL: 1 lb 6 oz (623 g)

10°F Down, 900FP

  • Regular: 1 lb 10 oz (737 g)
  • Large: 1 lb 14 oz (850 g)
  • XL: 2 lb 2 oz (963 g)

25°F Down, 950FP+

  • Coming soon

10°F Down, 950FP+

  • Coming soon

25°F Synthetic

  • Coming soon

Uninsulated

  • 25": 3.0 oz (85 g)
  • 20": 2.7 oz (76 g)

25°F Down

  • 20": 5.4 oz (153 g)
  • 25": 6.0 oz (170 g)

10°F Down

  • 20": 6.7 oz (190 g)
  • 25": 7.0 oz (198 g)

25°F Synthetic

  • Coming soon

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

Limit / Comfort Rating
Limit / Comfort Rating

25°F: 25°F (-4°C) / 35°F (2°C)

10°F: 10°F (-12°C) / 20°F (-7°C)

Uninsulated: N/A

25°F: 25°F (-4°C) / 35°F (2°C)

10°F: 10°F (-12°C) / 20°F (-7°C)

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Fill
Fill

Ultrasonic Muscovy™ 900FP: Ultrasonic Muscovy Down™ 90/10 grey duck down (untreated)

ExpeDRY™ Goose 900FP: ExpeDRY™ water-resistant 90/10 goose down (PFAS-free)

ExpeDRY™ Muscovy 900FP: ExpeDRY™ water-resistant 90/10 Muscovy down (PFAS-free)

Ultrasonic Muscovy™ 950FP+ coming soon

PrimaLoft® Gold Synthetic coming soon

Uninsulated: N/A

900FP Ultrasonic Muscovy Down™ (90/10 grey duck down), no water-resistant treatment (additive-free)

900FP ExpeDRY™ Goose Down (90/10), water-resistant treatment (chemical-free, PFAS-free)

900FP ExpeDRY™ Muscovy Down (90/10 grey duck down), water-resistant treatment (chemical-free, PFAS-free)

PrimaLoft® Synthetic coming soon

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Fill Weight
Fill Weight

25°F Down

  • Regular: 286 g
  • Large: 326 g
  • XL: 376 g

10°F Down

  • Regular: 543 g
  • Large: 628 g
  • XL: 723 g

25°F Down

  • 25": 46.5 g
  • 20": 44.5 g

10°F Down

  • 25": 84 g
  • 20": 79 g
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Fabric
Fabric

Liner: 10D Pertex® Quantum, coating-free, cire, C0 DWR (PFAS-free), 26 gsm

Shell: 10D Pertex® Quantum, coating-free, cire, C0 DWR (PFAS-free), 26 gsm

Liner: 10D Pertex® Quantum, coating-free, cire, C0 DWR (PFAS-free), 26 gsm

Shell: 10D Pertex® Quantum, coating-free, cire, C0 DWR (PFAS-free), 26 gsm

Side Wing Panels: 15D Nylon Taffeta, coating-free, non-cire, C0 DWR (PFAS-free), 33 gsm

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

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

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

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)

Recommended Dry Sack Size
Recommended Dry Sack Size

All 25°F Down: 4L - 7L

All 10°F Down: 10L

Dry Sack sold separately

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