Rab Ultrasphere 4.5 Sleep Mat (370g)

Rated 5.0 out of 5
Based on 3 reviews
$299.99 $249.00
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Size
Length

From bikepacking through mountain ranges to multi-day trail running, the award-winning Ultrasphere 4.5 offers peerless warmth for when you can’t compromise on weight.

Weight : Regular 370g, Long Wide 505g
 
Packed Size : Regular 15cm X 9cm, Long Wide 19cm X 9cm
 
R-Value : 4.3
 
Repair Kit Included
 

Activities

We recommend using this for:

  • Expedition
  • Fast & Light Adventures
  • Mountaineering
  • Trekking
 

When both warmth and low weight are crucial, the award-winning Ultrasphere 4.5 is the ultimate packable, featherlight air mat. Its ground-breaking design includes two layers of heat-reflective TILT, which reduce radiant heat loss, and offset air chambers that trap heat within the construction, allowing you to recharge comfortably without the need for high-volume insulation. Combined with a soft, exceptionally lightweight fabric, the mat’s weight-saving construction makes it ideal for bikepacking, thru-hiking, and multi-day mountain running.

With a comfortable tapered mummy shape that eliminates unnecessary bulk, the mat is thick and supportive, so that you can catch vital rest and restore the energy reserves needed for your action-fuelled days on the trail. When it’s time to pitch for the night, the low-profile two-way valve and inflation sack make camp setup quick and easy.

Featuring an included repair kit and unrivalled warmth-to-weight ratio, the Ultrasphere 4.5 is honed for fast-paced exploring in demanding mountain conditions.

  • Weight:Regular 370g / 13.1oz. Long Wide 505g / 17.8oz
  • 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:4.3
  • Packed Size:Regular 15cm x 9cm (5.9in x 3.5in) / Long Wide 19cm x 9cm (7.5in x 3.5in)
  • Product Code:QMA-06
  • 2 layers of TILT reflective film help reduce radiant heat loss without adding weight or bulk
  • Offset weight saving internal cut outs help disrupt the flow of convection currents and keep warm air static
  • R-Value: 4.3
  • Thickness: 8cm
  • Packed size: 18x9cm
  • 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
 
Write a Review
average rating 5.0 out of 5
Based on 3 reviews
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100% of reviewers would recommend this product to a friend
3 Reviews
Reviewed by Clare T.
Verified Buyer
I recommend this product
Age Range
45 - 54
Do you recommend this product?
Yes
Rated 5 out of 5
Review posted

Good mat, good value, compact & light weight.

I haven't had a chance to really test this out in a hut or tent yet but tested at home and it felt warm to lay on. Very happy with size both up and down. Was comfy and not too noisy. Easy and quick to inflate.

Good value for money.

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Reviewed by jen c.
Verified Buyer
I recommend this product
Age Range
45 - 54
Do you recommend this product?
Yes
Rated 5 out of 5
Review posted

Incredible

Outrageously lightweight but seriously comfy and warm. Worth every penny. I’m buying another for my husband. Oh and next-level customer service and speedy postage. Can’t fault it!

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Reviewed by ash h.
Verified Buyer
I recommend this product
Age Range
35 - 44
Do you recommend this product?
Yes
Rated 5 out of 5
Review posted

great kit

warm tiny and light.

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