Ionosphere 5 Sleep Mat

£170.00

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Ionosphere 5 Sleep Mat

£170.00

When both warmth and low weight are crucial, don’t compromise. The Ionosphere 5 offers you a comfortable night’s sleep when every gram matters.

R-value: 4.8. Heat Reflective TILT.

Activities:
Camping
Mountaineering
Trekking

Shape:
Tapered Mummy
Size Guide

Weight:
470g/16.6oz (Reg)

R-value:
4.8

Packed size:
Regular: 23cm x 11cm (9.1in x 4.3in). Long wide: 27cm x 13cm (10.6in x 5.1in)

Dimensions:
Regular: 183cm x 51cm x 8cm. Long wide: 196cm x 64cm x 8cm.

This unique guarantee promises to support you before, during and after your adventure, combining gear advice, aftercare services, and our Rab Warranty, to help you get more out of your gear.

For more information, please visit our Rab Promise page.

Features

Weight470g/16.6oz (Reg)
InsulationStratus™ R insulation traps air and reduces heat loss
DimensionsRegular: 183cm x 51cm x 8cm. Long wide: 196cm x 64cm x 8cm.
R-value4.8
Packed sizeRegular: 23cm x 11cm (9.1in x 4.3in). Long wide: 27cm x 13cm (10.6in x 5.1in)
Product codeQMA-10

Ultralight yet super warm, highly insulated yet extremely packable. The Ionosphere 5 offers the perfect balance of low weight and comfort for fastpacking, thru-hiking, and multi-day mountaineering in challenging environments. This insulated air mat is equipped with all the tech to keep you warm when the temperature drops, with a combination of heat-reflective TILT and Stratus™ R insulation to reduce heat loss through radiation and convection. The result is an exceptional warmth-to-weight ratio, allowing you to catch vital rest in cold conditions, even when pack space is at a premium.

The TILT reflective film inside the mat reduces radiant heat loss, boosting warmth for weight.
Stratus™ R insulation traps air to prevent heat escaping through convection.
Soft-touch, lightweight 20D fabric on the upper mat, with a 30D base for added durability on rough ground.
Oversized outer chambers to keep you central on the mat.
The tapered mummy shape is economical on weight and minimises pack size.
Inflation and deflation are quick and easy thanks to the low-profile two-way valve and pump sack.
R-value: 4.8.
Thickness: 8cm.
Roll-away stuff sack with repair kit included.
Dimensions: Regular 183x51cm. Large 196x64cm.
Packed size: Regular 23x11cm. Large 27x13cm.

Material Facts

Ionosphere 5 Sleep Mat

	Recycled	PFAS PFAS This column shows where fluorocarbons (PFAS) may still be present in our products. No PFAS means we’ve phased out all intentionally added PFAS from the corresponding component and are compliant with current EU and US legislation.
Total content Total content The total percentage of an item's weight that is recycled.	56%	No
Fabric Fabric Some of our products use multiple fabrics, especially waterproof items. This figure shows the total percentage of an item's fabrics which are recycled, calculated by weight.	61%	No
Outer	33%	No
Yarns	100%	No
Coatings	0%	No
Second outer	100%	No
Insulation	100%	No
Zips Zips This figure includes zipper tape, teeth, sliders, and pullers, showing their total recycled content by weight.	100%	No
Trims Trims This section shows the recycled content by weight for all components added to our products that are not captured in the other categories. For example, cord locks, pocket linings, buttons, cords, size labels, and eyelets.	20%	No
Renewable energy
Product manufacturing	41%
Manufactured in China
*Calculations based upon the weight of a regular length sleeping bag.
QMA-10 Version 09/2025

Material Facts is the way forward.

We’re helping you to make informed choices by giving you the raw data. Clear. Concise. Honest.

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Tech and features.

Features

Weight470g/16.6oz (Reg)
InsulationStratus™ R insulation traps air and reduces heat loss
DimensionsRegular: 183cm x 51cm x 8cm. Long wide: 196cm x 64cm x 8cm.
R-value4.8
Packed sizeRegular: 23cm x 11cm (9.1in x 4.3in). Long wide: 27cm x 13cm (10.6in x 5.1in)
Product codeQMA-10

The TILT reflective film inside the mat reduces radiant heat loss, boosting warmth for weight.
Stratus™ R insulation traps air to prevent heat escaping through convection.
Soft-touch, lightweight 20D fabric on the upper mat, with a 30D base for added durability on rough ground.
Oversized outer chambers to keep you central on the mat.
The tapered mummy shape is economical on weight and minimises pack size.
Inflation and deflation are quick and easy thanks to the low-profile two-way valve and pump sack.
R-value: 4.8.
Thickness: 8cm.
Roll-away stuff sack with repair kit included.
Dimensions: Regular 183x51cm. Large 196x64cm.
Packed size: Regular 23x11cm. Large 27x13cm.