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![](http://www.flextail.com/cdn/shop/files/R05-Mummy--PC_01.jpg?v=1706261847)
Ultralight Comfort
A 3.9-inch (10 cm) thick profile and U-shaped high-low structure design, deliver premium backcountry comfort while keeping the weight to a minimum.
![](http://www.flextail.com/cdn/shop/files/R05-Regular--PC_02.jpg?v=1706263701)
5.6 R-value Year-round Warmth
With an impressive R-value of 5.6, ZERO MATTRESS R05 MUMMY adopts a vertical tube structure, which possesses excellent insulation performance, keeping you warm and cozy even in chilly outdoor conditions. Good for year-round, and perfect for outdoor adventures such as backpacking, and hiking.
![](http://www.flextail.com/cdn/shop/files/R05-REGULAR--M_03_02c552e0-bbbd-4b67-8f37-8c87fe5a9acd.jpg?v=1706516172)
![](http://www.flextail.com/cdn/shop/files/R05_Mummy_structure_6bb17985-583e-481e-a0cd-d74e4c7c1ea2.jpg?v=1705476655)
Ultra-Compact Design
Weighing just 18.3oz and packing down to φ12.5*23cm/φ5*9in, ZERO MATTRESS R05 MUMMY is incredibly portable, allowing you to bring luxurious comfort to any campsite or trail.
![](http://www.flextail.com/cdn/shop/files/R05-Mummy-2.jpg?v=1706264542)
Easy Inflation and Deflation
Featuring a user-friendly design, this mattress inflates and deflates quickly with FLEXTAIL ZERO PUMP, allowing you to set up camp in minutes and pack up with ease.
![](http://www.flextail.com/cdn/shop/files/R05_Mummy_with_pump_ccb37085-c2bf-46f3-8fc6-ef5d624039b1.jpg?v=1705478233)
Multiple Sizes
2 size options allow you to get one that is perfect for your sleep system.
![](http://www.flextail.com/cdn/shop/files/R05-Regular--PC_10.jpg?v=1706516181)
Product Specs
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Weight
18.3oz
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R-Value
5.6
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Size
183*55*7cm/72*21.6*2.8in
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Packed Dimension
φ12.5*23cm/φ5*9in