Reader Reviews

Rating: 5 / 5

Camped out in the backyard last night for a tryout of the thermarest allseason. Set the Tarp Tent Contrail up quite high to let as much cold in as possible. Temp got down to -5.5c (22F).
Used a Western Mountaineering Ultra light bag rated to -7c (19.4F) with a silk inner bag.
Woke up in the middle of the night a bit cold, temp was -4c (24.8F). Part of the body touching the mattress was warm, but the upper part with only the sleeping bag as insulation started to feel the chill (I sleep naked).
I tried resting on my side and my back and whilst on my back gave me the best warmth from the WM Bag and matress I was still a tad cold, yet my body touching the mattress when on side or back was warm…nicely warm.
Put on 150 Icebreaker T-shirt and Training pants, cinched the hood of the bag and was warm all over.
In the early hours of the morn when -5.5c (22F) was still nice and warm. Incredibly though, it was still warmest on the mattress side same as before.

Noise was a non-issue. Was aware of crackling when I first blew/bagged it up, but when sleeping on it I didn’t even think about it.

I’m happy so far with a mattress that got me to -5.5c out and weighs 550grams with the potential to go even colder.