Our Lightest and Most Packable Backpacking Mattress

Introducing the new Zenbivy Ultralight Mattress! The uncommonly supportive Ultralight Mattress features the same diagonal baffle structure as our revolutionary Flex™ Air Mattress but swaps the stretch knit top for an ultralight 20D honeycomb embossed Recycled Polyester Taffeta, bringing the weight down to just 1 lb 1 oz. Two layers of featherlight mylar insulation deliver EN/ISO-matched warmth. We invite you to scroll through the features below!

Ultralight Mattress

Name: Ultralight Mattress
Brand: Zenbivy
SKU: 21587
Price: 189.0 USD
Availability: InStock

$189.00

Size

20x72 25x72 25x78

Product variants

Size Guide

Return & Exchange Policy

You may return items for up to 14 days after delivery for a full refund, less the original shipping fee. Returned items must be unused, with tags attached, and in the same new condition in which you received them. View our full return policy here.

International Duties & Taxes

Packages will be subject to import/duty fees upon arrival. International customers are responsible for these fees. See more details.

Description

Zenbivy’s lightest and most packable backpacking mattress! The Ultralight Mattress is uncommonly supportive and delivers EN/ISO-matched warmth in the backcountry.

Specifications

R-value

4.8
Weight

20x72: 1 lb 1 oz (482 g)
25x72: 1 lb 5 oz (595 g)
25x78: 1 lb 6 oz (623 g)
Inflated Size

20x72: 21" x 72" x 3" (51 x 183 x 8 cm)
25x72: 25" x 72" x 3"(64 x 183 x 8 cm)
25x78: 25" x 78" x 3" (64 x 198 x 8 cm)
*Ultralight Mattresses have a 5" taper, meaning the foot end is 5" narrower than the width.
Packed Size

20x72: 6.5" x 3" (16 x 8 cm)
25x72: 8" x 3" (20 x 8 cm)
25x78: 8" x 3.5" (20 x 9 cm)
Insulation

Two layers of mylar foil
Fabric

Top & Bottom: Embossed 20D Recycled Polyester Tafetta
Includes

Mattress, waterproof inflation storage sack, and repair kit

Explore the Features

Supportive Offset Air Cells

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.
Flush, High-Speed Valve

The low-profile valve is large for fast inflation and instant dumping of air, and the slow-deflation "button" allows for customizable comfort. Plus, the whole valve is replaceable and repairable should you ever need it.
Included Inflation Sack

Bigger does not mean faster! An inflation sack that's too big is just more material to wrestle. Our slightly oversized ultralight inflation sack (1.0 oz) is optimized for the fastest inflation time. It's quick and easy to use, just couple the inflation sack to the mattress valve and push air through.
Waterproof Storage

The ultralight inflation sack doubles as waterproof storage for your mattress. Twist, stuff, and cinch it shut!
Tapered Shape

The tapered shape saves weight and cuts bulk so it’s more compact and lighter in your pack.
Ultra-Compact

The Zenbivy Ultralight Mattress is our lightest and most packable backpacking mattress, starting at just 1 lb 1 oz and rolling down to 6.5" x 3".

Explore the Materials

Mylar Layers

Mylar is a popular insulation choice for ultralight camp mattresses, but unlike other ultralight mattresses that are crinkly, loud, and provide insufficient warmth, our mattress's mylar layers “float” within to quietly reflect heat and deliver R4.5+ for EN/ISO-matched performance.
Embossed 20D Recycled Polyester Taffeta

Our embossed 20D Recycled Polyester Taffeta is laminated, not coated, making it stronger and more durable than other ultralight mattress fabrics.

Shop All Zenbivy Mattresses

Great sleep outdoors requires a warm, comfortable, and quiet mattress. All Zenbivy mattresses deliver R4.5+ for EN/ISO-matched performance.

Which one is right for you?

NEW

Ultralight Mattress

From $189.00

View details
NEW

Flex™ Air Mattress

From $209.00

View details
Light Mattress

From $159.00

View details
Base Mattress

From $79.00

View details
Flex™ Mattress

From $129.00

View details
Flex™ 3D Mattress

From $199.00

View details

The competition should fear this pad

The comfort level of the previous comfort king - the REI Helix, yet 200 grams lighter, which means its coming with me instead of the Helix. And an equally important innovation is the stuff sack, which serves as an easy to use pump sack and also serves as an extra dry bag. And most importantly, it weighs only 30 grams so I leave my Flextail zero pump at home since it weighs double. This outright beats the competition which have terribly large pump sacks which weigh nearly double. Zenbivy are spearheading true game changing innovation for hikers and I can't wait to see what they do next. If they ever invent something like a 10d version of the full sheet, I would be over the moon! I love the tension that the full sheet gives and am currently using the 20d full sheet version from 2023 along with my new Zenbivy UL quilt and this UL pad. Its a dream!

Looks fabulous! I’m really excited about my upcoming trip. I leave on the 15th. I’ll certainly let you know how the sleep system held up to the chilly temps.

Nothing but love!

Love. I love it and I love Zenbivy

Lighter & Softer

Currently on Appalachian Trail and been using it for 19 days and love it so far!!

Hi Jeff,

We're stoked to hear you're loving it. Happy hiking!!

-The Zenbivy Team

Really impressed!

Have been testing the new UL mattress in weather between -15C and -3C, and its been plenty warm, and quite comfortable. It is surprisingly quiet, and not crinkly like a lot of air pads. Glad I went with the 25" wide pad. My first wide pad, and I'm hooked. I won't go back to regular width pads again.

I do find I need to really inflate the pad, to avoid my hip touching the ground as a side sleeper.

Hi Matt,

Thanks so much for your review! We're glad to hear you're impressed with your Ultralight Mattress so far! We agree on the width—it's hard to go back to a 20' mattress when you've experienced that luxurious and spacious 25' width, right?!

-The Zenbivy Team

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