Rab Ultrasphere 4.5 Sleep Mat (370g)

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.

 

• 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

 

• Activities:

  • Expedition

  • Fast & light adventures

  • Mountaineering

  • Trekking

• Shape:

  • Tapered Mummy

• Weight:
  • Regular: 370g / 13.1oz. Long wide: 505g / 17.8oz

• 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)

• Dimensions:

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