Ultrasphere 5 Sleep Mat
Ultrasphere 5 Sleep Mat
Ultrasphere 5 Sleep Mat
Ultrasphere 5 Sleep Mat
Ultrasphere 5 Sleep Mat
Ultrasphere 5 Sleep Mat
Ultrasphere 5 Sleep Mat
Ultrasphere 5 Sleep Mat
Ultrasphere 5 Sleep Mat
Ultrasphere 5 Sleep Mat
Ultrasphere 5 Sleep Mat
Ultrasphere 5 Sleep Mat
Ultrasphere 5 Sleep Mat
Ultrasphere 5 Sleep Mat
New Arrival

Ultrasphere 5 Sleep Mat

$200.00
Ultralight insulated sleep mat built for fast-moving mountain trips, from bikepacking and thru-hiking to multi-day runs.
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Colour
Size
Temp. Limit - -22°C
Weight - 345g
Packed Size - 15 x 19cm

The Rab Ultrasphere 5 Sleep Mat is built for trips where pack space, weight, and reliable overnight warmth all matter. For bikepacking through mountain ranges, fast-and-light trekking, mountaineering, and multi-day trail running, it offers a strong warmth-to-weight balance in a compact, featherlight package that suits demanding mountain conditions.

Rab uses two layers of heat-reflective TILT to help reflect heat back towards your body, while the offset air chamber construction traps warmth without relying on high-volume insulation. At 8cm thick, it gives you a comfortable, supportive platform at the end of a long day on the move, and the tapered mummy shape keeps bulk down. It’s the kind of mat that makes sense when every gram counts, but you still want to sleep well enough to get up and do it again.

Best For

  • Activities: Fast & light adventures
  • Mountaineering
  • Trekking

Shape & Dimensions

  • Shape: Tapered Mummy
  • Thickness: 8cm
  • Regular: 183cm x 51cm x 8cm
  • Regular wide: 183cm x 64cm x 8cm
  • Long wide: 196cm x 64cm x 8cm

Performance

  • Weight: 345g/12.2oz (Reg)
  • R-value: 5.5
  • Impressively light at just 345g (size regular), with uncompromised warmth at an R-value of 4.9
  • Performance: Lightness 5/5
  • Pack size 5/5
  • Environment use 3/5
  • Sleep comfort 4/5

Construction

  • Heat Reflective TILT
  • Two layers of heat-reflective TILT reduce radiant heat loss without adding weight
  • The new weight-saving construction uses offset air chambers to trap heat and keep you warm

Packed Size

  • Regular: 15cm x 9cm (5.9in x 3.5in)
  • Regular wide: 19cm x 9cm (7.5in x 3.5in)
  • Long wide: 19cm x 9cm (7.5in x 3.5in)
  • Packed size: 18x9cm

Features

  • Comfortable tapered mummy shape that eliminates unnecessary bulk
  • Soft, exceptionally lightweight 20D fabric
  • When it’s time to pitch for the night, the two-way valve and inflation sack make camp setup quick and easy
  • Roll-away stuff sack with repair kit included

Materials & Sustainability

  • Recycled total content 17%
  • PFAS: No
  • Fluorocarbon (PFAS) free fabric
  • Fluorocarbon (PFAS) free product

Additional Details

  • Product code: QMA-13
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Ultrasphere 5 Sleep Mat
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Frequently Asked Questions

For more information view our FAQ page

  • Free shipping on orders over $99 (oversize charges may apply) - Read our shipping policy for more information.

  • Standard shipping estimates are as follows:

    Alberta and British Columbia: 2-4 business days

    Saskatchewan and Manitoba: 3 - 4 business days

    All other provinces and territories: 5 - 9 business days

  • We offer fast & easy returns on most products. Exceptions include products 30% off or more, climbing gear, underwear & more.

    Read our return policy here.
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