Ultrasphere 4.5 Sleep Mat (370g) - Regular
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.
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.
Information
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 required 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.
Features:
- 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
Specification
- Weight:Regular 370g / 13.1oz
- Main Fabric:20D Recycled Polyester outer fabric with internal TPU Coating and fluorocarbon free DWR
- Dimensions :Regular: 183cm x 51cm x 8cm
- R-Value:4.3
- Packed Size:Regular 15cm x 9cm (5.9in x 3.5in
Delivery and Returns
We are a UK company based in Stevenage for over 45 years. All items shown 'in stock' are in stock, in the UK and ready for processing and dispatch with no extra charges, duties, or import tax. The price you see is the price you pay.
| Country/Region | Shipping Contribution Inc. VAT | Carriage Paid Level Inc. VAT | Delivery days |
| UK Mainland | £3.50 | £40.00 | Approx. 1 working day |
| UK Highlands, Islands & Northern Ireland | £3.50 | £40.00 | Approx. 2 working days |
| Click and Collect | Free | n/a | Approx. 4 hours |
We use Royal Mail Tracked 24-Hour Service and, for some items, the premium DPD service in the UK. Saturday, Sunday, and Bank Holidays are not DPD or Royal Mail working days.
We will inform you by email when your goods are out for delivery, and the message will contain a link to allow you to track your consignment via the Royal Mail Tracked 24 and DPD Predict service. If you provide a Mobile number, you should also receive an SMS text message.
United Kingdom
We deliver to all countries within the United Kingdom, including England, Wales, Scotland, and Northern Ireland.
Orders placed by noon on a working day (Mon-Fri) should be delivered by the end of the following working day in the UK. Please be aware sometimes factors beyond our control can delay delivery and next-day delivery cannot be guaranteed.
Deliveries to the Scottish Highlands and Islands, Northern Ireland and the Isle of Man take an extra day, so we ask customers to please allow 2-4 working days from the day of order to avoid any disappointment.
Notwithstanding this, we only sell from our stock which is ready to ship, all orders are treated as priority and get the fastest delivery possible, and we don't charge extra for this. In the UK, this means next working day for orders received by noon.
Channel Islands
We do not deliver to The Channel Islands. We apologise for any inconvenience caused.
European Union and International Destinations
We do not deliver to destinations outside the United Kingdom. We apologise for any inconvenience caused.
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