![](http://www.flextail.com/cdn/shop/files/R05-REGULAR--M_01_7fc4ff35-d39b-46ab-81d9-563ebf37a40d.jpg?v=1718174715&width=900)
![](http://www.flextail.com/cdn/shop/files/R05-Regular--PC_01_650bef0c-c01c-4cd3-a54b-51ffbb93319f.jpg?v=1718174422&width=2400)
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--M_02_ae6d380f-0abb-44bc-81fd-665a0b5b82bf.jpg?v=1706264410&width=900)
![](http://www.flextail.com/cdn/shop/files/R05-Regular--PC_02_e5d7f944-2eb1-4570-884c-c02e96733800.jpg?v=1706264411&width=2400)
5.6 R-value Year-round Warmth
With an impressive R-value of 5.6, ZERO MATTRESS R05 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&width=2400)
![](http://www.flextail.com/cdn/shop/files/R05-REGULAR--M_04.jpg?v=1705480500&width=2400)
Ultra-Compact Design
ZERO MATTRESS R05 Regular weighing just 24.3oz and packing down to φ5.1*10.8in, ZERO MATTRESS R05 Mummy weighing just 18.3oz and packing down to φ5*9in. ZERO MATTRESS R05 is incredibly portable, allowing you to bring luxurious comfort to any campsite or trail.
![](http://www.flextail.com/cdn/shop/files/R05-Mummy-1.jpg?v=1706264542&width=900)
![](http://www.flextail.com/cdn/shop/files/R05-Mummy-2.jpg?v=1706264542&width=2400)
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.jpg?v=1705476649&width=900)
![](http://www.flextail.com/cdn/shop/files/R05_Mummy_with_pump_ccb37085-c2bf-46f3-8fc6-ef5d624039b1.jpg?v=1705478233&width=2400)
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--M_07_27f7347e-8f6c-4396-ba48-bf86b13fe94e.jpg?v=1706516181&width=900)
![](http://www.flextail.com/cdn/shop/files/R05-Regular--PC_10.jpg?v=1706516181&width=2400)
Product Specs
R05 REGULAR
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Weight
24.3oz (710g)
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R-Value
5.6
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Size
72*25.6*2.8in (183*65*7cm)
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Packed Dimension
φ5.1*10.8in (13*27.5cm)
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Maximum Weight Capacity
330lb (150kg)
R05 MUMMY
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Weight
18.3oz (535g)
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R-Value
5.6
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Size
72*21.6*2.8in (183*55*7cm)
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Packed Dimension
φ5.1*9 in (12.5*23cm)
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Maximum Weight Capacity
330lb (150kg)