Jump to: Our Verdict / Features / Specifications
We're working out what we think - we'll add our view here!
Rab says:
Combining ultralight fabric and a new construction that's lighter than ever, this air mat offers maximum packability for when every gram counts. Highly comfortable, it's the ideal foundation for summer thru-hiking and multi-day mountain runs.
Our Verdict
We're working out what we think about Rab's Ultrasphere 1.5 Sleeping Mat - Regular We'll add our comments here in due course.
- Reviewed by Ultralight Outdoor Gear
Features
- 20D recycled polyester outer
- Offset weight-saving internal cut outs to keep warm air static
- 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
Specifications
- Weight: 439g
- R-Value: 1.4
- Thickness: 8cm
- Packed size: 18x9cm
ASTM R-Value:
From 2020, there is a new industry standard for measuring the R-value (level of insulation) of sleeping mats – ASTM F3340-18. This new standard is the sleeping mat equivalent to the EN rating for sleeping bags.
You can now directly compare the R-value of mats rated using the ASTM F3340-18 with confidence that is a fair and accurate comparison between mats. In simple terms, the higher the R-value, the warmer the mat.
In general terms, an R-value below 2.0 is for summer use, 2.0 to 4.0 is for cooler 3 season use and 4.0+ is for winter temperatures. This will be also be dependent on your sleeping bag, how cold you sleep etc. Please contact our customer service team if you need advice on choosing the right mat for your activity.
Material & Construction
- 100% Polyester Inflatable Mattress
