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  • Ionosphere 5.5 Sleep Mat (690g)

 
 

Ionosphere 5.5 Sleep Mat (690g)

Only %1 left
£190.00

Equipped with ground-breaking heat-reflective TILT technology and air-trapping Stratus™ R insulation, this compact sleep mat is designed to offer unrivalled comfort for alpinists and mountaineers in the world’s toughest conditions.

Weight : Regular 690g, Long Wide 950g
Packed Size : Regular 24cm x 12cm, Long Wide 30cm x 14cm
R-Value : 5.5
Repair Kit Included
 
All gear is covered by the Rab Promise
Free delivery on all orders (Excluding Service)

Rab Promise

If any of our clothing or equipment fails we promise to help make it right with a repair or replacement, find out more here. Damage due to wear and tear or improper care can also be repaired for a reasonable fee.

Ionosphere 5.5 Sleep Mat (690g) £190 Sizing
£190

Product Characteristics

Lightness

Light Ultralight

Pack Size

Moderate Pack Size Ultra Low Pack Size

Environment Use

Cold Extreme Cold

Sleep Comfort

Comfortable Very Comfortable
i

These ratings compare our sleep mats against each other. All our mats, at any rating, are of the highest quality.

Product Characteristics

Lightness

Light Ultralight

Pack Size

Moderate Pack Size Ultra Low Pack Size

Environment Use

Cold Extreme Cold

Sleep Comfort

Comfortable Very Comfortable
i

These ratings compare our sleep mats against each other. All our mats, at any rating, are of the highest quality.

What It's Best For

Expedition
Mountaineering
Trekking
Fast & Light Adventures

Tell Me More

Crafted for extreme temperatures and hostile environments, the Ionosphere 5.5 is fully equipped with the tech to insulate you from the freeze. Its design reduces heat loss through both radiation and convection, thanks to the heat-reflective TILT technology and air-trapping Stratus™ R insulation. With a superior warmth-to-weight ratio and small pack size, it’s the perfect high-comfort sleep mat for alpinists and mountaineers who need to hunker down in the world’s most challenging conditions.

The mat features clever details to maximise your comfort, including oversized outer chambers to keep you central on the mat, and a grip print to reduce sleeping bag slip. The fabric has a soft next-to-skin feel while the versatile rectangular shape will ensure you can rest comfortably whatever your preferred sleeping position. A low-profile two-way valve and handy pump sack allow you to quickly inflate the mat when the temperature plummets and you’re ready to turn in.

Made from 100% recycled insulation, recycled fabric and a fluorocarbon-free DWR, the Ionosphere 5.5 is built to thrive in hostility. From frosty bivis to alpine starts, it will ensure you can comfortably restore reserves wherever you set up camp.

The Specifics

  • Weight:Regular: 690g / 24.3oz. Long Wide: 950g / 33.5oz
  • Insulation:Stratus™ R 100% recycled polyester 200gsm insulation with TILT
  • Main Fabric:20D Recycled Polyester outer fabric with internal TPU Coating and fluorocarbon free DWR
  • Dimensions:Regular: 183cm x 51cm x 8cm. Long Wide: 196cm x 64cm x 8cm
  • R-Value:5.5
  • Packed Size:Regular 24cm x 12cm (9.4in x 4.7in) / Long Wide 30cm x 14cm (11.8in x 5.5in)
  • Product Code:QMA-01
  • Stratus™ R insulation traps air and reduces heat loss from convective currents
  • TILT reflective film within the insulation helps reduce radiant heat loss
  • R-Value: 5.5
  • Thickness: 8cm
  • Lightweight construction uses air and insulation for superb warmth-to-weight ratio and minimal pack-size
  • Oversized outer chambers helps keep you centralised on the mat
  • Graduated grip print finish on upper fabric reduces sleeping bag slip
  • Hybrid rectangular shape allows various comfortable sleeping positions
  • Low profile two-way valve for easy inflation and deflation
  • Pump sack included for rapid and hygienic inflation
  • Roll-away stuff sack with repair kit included
  • Dimensions: Regular 183x51cm. Large 196x64cm
  • Packed Size: Regular 24x12cm. Large 30x14cm.

Behind The Design

Find out about the fabrics and features that make this gear unique.

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How to Inflate and Pack your Sleeping Mat

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R-Value: 5.5

Your sleep mat’s R-value is an indication of how well it will resist heat loss. A higher R-value means it will insulate you more effectively from the ground underneath, and will be better suited to cold environments.

R-Value: 5.5

Your sleep mat’s R-value is an indication of how well it will resist heat loss. A higher R-value means it will insulate you more effectively from the ground underneath, and will be better suited to cold environments.

Stratus™ R

Resilient synthetic insulation developed with 100% recycled post-consumer material. Designed to trap the maximum amount of air possible, Stratus™ R boasts superior warmth for its weight, retains warmth when wet, and dries quickly.

Stratus™ R

Resilient synthetic insulation developed with 100% recycled post-consumer material. Designed to trap the maximum amount of air possible, Stratus™ R boasts superior warmth for its weight, retains warmth when wet, and dries quickly.

What is TILT technology?

A radical, heat retaining tech that works like an emergency blanket reflecting heat back towards your body, while maintaining breathability and comfort. Boosting thermal efficiency, it keeps you warm when the temperature plummets.

What is TILT technology?

A radical, heat retaining tech that works like an emergency blanket reflecting heat back towards your body, while maintaining breathability and comfort. Boosting thermal efficiency, it keeps you warm when the temperature plummets.

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Ionosphere 5.5 Sleep Mat (690g) Reviews

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Returns

If you are unhappy with your purchase, please return it to us within 45 days of receipt.  The item(s) must be in resalable condition with tags attached. We are currently unable to exchange items and will refund products returned to us under the policy above.

Please note, we are not able to accept returns for underwear unless the product is faulty or damaged. We advise that you use a recorded courier service to return your item(s) as we cannot be responsible for items lost in the post.

For more information regarding returns and warranty, please see our help centre.