Ultrasphere 4.5 Sleep Mat (370g)
- Info
- Delivery and returns Delivery
- Rab Promise
Activities
- Expedition
- Fast & light adventures
- Mountaineering
- Trekking
Key benefits
- Very cold conditions
- Very low pack size
- Very light
- Most comfortable
Awards
- ISPO Award Winner (2023)
Delivery
All UK orders are shipped free of charge by DPD.
DPD local pickup available - over 10,000+ locations.
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, please visit our delivery page.
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 below.
For more information, please visit our returns page.
This unique guarantee promises to support you before, during and after your adventure, combining gear advice, aftercare services, and our Rab Warranty, to help you get more out of your gear.
For more information, please visit our Rab Promise page.
Tech and features.
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.
While compatible with any sleeping bag, the Ultrasphere 4.5 can be paired with our Mythic Ultra 120 Modular bag to form an ultralight sleep system weighing under 700g.
Performance
Sustainability features.
Compare with similar products
Ultrasphere Sleep Mat
Hear about the tech, fabrics, and features from the team behind the design.
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