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Ionosphere 5 Sleep Mat (550g)

Only %1 left
£170.00

This ultralight and packable sleep mat is designed to reduce heat loss through radiation and convection, giving it an unbeatable warmth-to-weight ratio perfect for lightweight adventures in challenging environments.

Weight : Regular 550g - Long Wide 810g
R-Value : 4.8
Dimensions : Regular 183 x 51cm - Long Wide 196 x 64cm
Thickness : 8cm
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 Sleep Mat (550g) £170 Sizing
£170

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 sleeping 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 sleeping mats against each other. All our mats, at any rating, are of the highest quality.

What It's Best For

Mountaineering
Trekking
Fast & Light Adventures

Tell Me More

For mountain expeditions where every gram matters, the Ionosphere 5 is ultralight and packable, yet loaded with the necessary tech to keep you warm in tough conditions. The TILT reflective film within the insulation reduces radiant heat loss, while the Stratus™ R insulation traps air to lessen heat loss through convection, ensuring you can recharge for tomorrow even when the temperature plunges.

The tapered mummy shape is economical on weight, keeping pack size to a minimum. Oversized outer chambers ensure you stay central on the mat as you sleep, and the soft-finish fabric features a graduated grip print to reduce sleeping bag slip during the night. Inflation and deflation are quick and easy thanks to the low-profile two-way valve and pump sack.

The Ionosphere 5 is built using 100% recycled insulation, recycled fabric and a fluorocarbon-free DWR, and offers a superb warmth-to-weight ratio which won’t hold you back.

The Specifics

  • Main Fabric:20D Recycled Polyester outer fabric with internal TPU Coating and fluorocarbon free DWR
  • Insulation:Stratus™ R 100% recycled polyester insulation 160gsm with TILT
  • Weight:Reg: 550g. LongWide: 810g
  • R-Value:4.8
  • Packed Size:Regular 23cm x 11cm (9in x 4.3in) / Long Wide 28cm x 12cm (11in x 4.7in)
  • Product Code:QMA-04
  • 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: 4.8
  • Thickness: 8cm
  • Lightweight construction uses air and insulation for superb warmth-to-weight ratio and minimal pack-size
  • Oversized outer chambers help keep you centralised on the mat
  • Graduated grip print finish on upper fabric reduces sleeping bag slip
  • Tapered mummy shape to save weight
  • 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 23x11cm. Large 28x12cm

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: 4.8

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: 4.8

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.

It's In Our DNA

A Climate Neutral Company

We're reducing our carbon footprint while balancing any remaining emissions through carbon credits. It's not a final solution, but we believe in taking accountability for today's emissions while we reduce tomorrow's

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We're working to make the garment industry fairer. We're dedicated to supporting garment workers' rights to safe, dignified and properly paid employment. Making garment production fairer for everyone.

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Rather repair than replace?

The Rab Service Centre is here to keep your gear in action, reducing waste and making more memories in the process. Find out if we can help you with a repair now.

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Our Ascent to Net Zero

We're committed to becoming a Net Zero business by 2030. We'll reduce all unnecessary carbon emissions from our business operations and will offset any that are left.

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Ionosphere 5 Sleep Mat (550g) Reviews

Shipping

Rab ships throughout the UK, EU and the United States. All UK orders are shipped free of charge by DPD. Orders placed during the week and before midday will typically be delivered within 48 hours, orders placed on weekends will ship on the following Monday.

For more information regarding shipping, including shipping charges and estimated delivery times, please visit our help centre.

Returns

If you are unhappy with your purchase, please return it to us within 28 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.