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The Mistral SI is a self inflating sleeping mat that works well for three season use. Simple, effective, great value and comfortable, this mat provides a good base for a nice nights sleep.
Kelty says:
Perfect for first-time campers and anyone who wants to be MORE comfy for LESS money, our Mistral SI Pad inflates easily and weighs in at under three pounds in its stuff sack. Pair it with its sibling, our Mistral bag—or any mummy—for a peaceful night under the stars.
Our Verdict
Kelty's Mistral SI Mummy Sleeping Mat is a self inflating mat with a good R-Value that means it can be comfortably used for three season camping. It has a decent length, width and a nice 5cm depth to keep you comfortable with a good amount of insulation too.
As with all self inflating mats, the weight and particularly the pack size, are not going to suit everyone as both are heavier and larger than many alternatives. However, this is a really nice package with more heavy duty vinyl coated material providing a durable base and a solid, reliable valve. This is combined with a very reasonable price for a mat like this.
- Reviewed by BasecampGear
Features
- Self-inflating, semi-rectangular pad
- Easy to use inflate/deflate valve
- 1.5 inches thick
- 2 lbs. 12 oz. with stuff sack
- Pairs well with Mistral or any mummy bag
Specifications
- Weight: 1256g (excludes storage bag)
- Inflated Dimensions: 73.23" x 22.05" x 1.5" / 186 x 56 x 4 cm
- Packed Dimensions: 12" x 7.5" x 7.5" / 30 x 19 x 19 cm
- ASTM R-Value: 4.7
- Fabric: Vinyl-coated poly
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.
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