Well who’d have guessed it? There are loads of people out there who think that thermarests are pretty damn cool. I have to agree – they are… but I just wanted to do some basic number crunching comparing thermarest with exped.

So – we’ll take my Exped 7 DLX as the base and then compare that with a ‘comparable’ thermarest and then the smallest thermarest.

Stats on the 7 DLX

Cost: £115
Size: 193×65 cm / 76×26“
Thickness: 7 cm / 2.8“
Weight: 1170 g / 41 oz
Packed: 30×15 cm / 12×6“

The nearest thermarest I can find is the LuxuryCamp™ XL

Cost: £104.99
Size: 196×76 cm / 77×30″ (3cm longer, 11cm wider)
Thickness: 6.3cm / 2.5″ (1cm thinner)
Weight: 2295 g / 5lbs 1 oz (a massive 1125g heavier)
Packed: 76×14 cm / 30×5.6″ (wow – this is the biggy – it’s 46cm wider but 1 cm thinner when packed)

What I can’t quite work out is that if this mat is thinner when you’re lying on it where does the extra come from when it’s packed – ahh it’s because it’s 11cm wider – but that still doesn’t account for it being nearly .5m wider than the exped – that’ll be the down at work.

In order to get a thermarest that packs to the same size as the exped you have to go for something like the ProLite 4™ (large) which packed comes in at 13×5.1in. (33x13cm) but is only 3.8 cm deep… not that comfy.

Obviously both brands have smaller and larger mats – but I just can’t get over the difference in the weight and pack size for a more comfortable mat that can also deal with a greater range of temperatures and comes with all the same bells and whistles like chair conversion kits and strap on pillows (from the pack cover).