Tensor™ Extreme Conditions Insulated Sleeping Pad

The therm-a-rest is the most popular and i have the blue one but depending on the conditions you camp in you could pick the lighter one (yellow). That being said this one and the nemo extreme conditions will have higher denier material underneath which makes them less prone to puncture. I don’t know about the other ones on top of my head. Nemo and thermarest both have good warranties and spare parts, so I’d be leaning towards that. It’s polarizing but both are known to make a lot og noise no matter what they claim.

Adding on to what Massey said **Sleeping bags** At those temps you would want gear rated to handle temps at least at -40F, maybe even -60F depending g on how you sleep and the manufacturer. Many will list the lower limit or survival temp so a -40f bag may only be comfortable down to -15 for you. You are hitting highly specialized gear at this point, even REI has very few bags rated for those temps. I would not try to DIY bag layering with your experience level and those temps. Your choices also break down in to two basic categories - down: lighter, packs smaller, expensive, different care requirements - synthetic: significantly heavier and bulkier but can be much more affordable For down bags western mountaineering is probably the gold standard but bags will be over $1,000. There are a few other major brands in this space but prices will be of a similar range, maybe a few hundred less. There are also some custom gear makers like feathered friends that make down bags in that temp range. For synthetic bags I have used a layered sleep system used by a company called wiggy's. Their two bag system for use down to -40 would take up most of my 60l bag even in the compression sack. I've had it down to about -10 or -15 and was comfy. A large percentage of my scout troop in Alaska used the -40 system from them. The other main synthetic system that I'm familiar with is the military modular sleep system which is supposedly rated to -50 when you use all 3 layers. **Sleeping pads** R value can be additive so you could get one really good pad like a nemo tensor extreme, exped megamat, Therm-a-Rest NeoAir XTherm, or other high r value pad or you could layer multiple closed cell foam pads together and put those on top of a lower r-value Sleeping pad. **Body Sleeping system** Sleeping bags are rated with the following assumptions - the "average" man - wearing base layers - on a well insulated sleeping pad I covered the bag and pad but you also need to have some decent base layers and at those temps you should also be considering what to wear on your head and face. You will probably want to sleep wearing a buff and hat or balaclava and maybe even a hat as well. You want your mouth to be breathing out through the face opening in the bag whenever possible due to condensation buildup. Make sure you have a set of clothes ONLY for sleeping, you want to be completely dry getting in to the bag. **tent** Many tents will work as long as weather isnt a concern. I've used both coleman and ozark trails tent in below zero conditions. The big issue is good ventilation so that any condensation doesn't build up on your bag or on an inner tent wall that may touch your bag and saturate it with water. Double layer tents with a full rainfly would be my go to, especially one with a partial solid interior (the bottom half or so being a solid fabric) that will help block blowing snow and winds. Very few people actually need a dedicated winter tent. In my 4 years in Alaska I never ran in to anyone with an actual 4 season tent and we camped out every month of the year.

The Nemo Extreme is a winter pad. I have it. If you're a 3-season camper you absolutely don't need it. Its larger than a standard insulated pad in the \~4r range, but impressively not by much. Tensor extreme comes in at a whopping 8.5r and isn't needed unless it's winter and very cold.

The Nemo Extreme is a winter pad. I have it. If you're a 3-season camper you absolutely don't need it. Its larger than a standard insulated pad in the \~4r range, but impressively not by much. Tensor extreme comes in at a whopping 8.5r and isn't needed unless it's winter and very cold.

I use the same pad in the winter. I love it and don't find it particularly slick at all. I use it over top of a closed cell foam pad, and my winter sleeping bag has [pad straps](https://mountainsforeverybody.com/wp-content/uploads/2019/11/SynergyLink-Connectors.jpg) that keep things all lined up. Using it in a Black Diamond Highlight tent. Maybe the naturehike has lousy floor material? Look into modifications before tossing the pad for something else, it's an absolute performer at 8.5r for 1.6 lbs!

I just used my Tensor Extreme in 15° and it was great. I have a uninsulated tensor also that I love.

I have the nemo tensor extreme. Really comfortable and warm but expensive. Mec is doing a sale on full priced items so you can hopefully find one you like and get an extra 15% off for it.

An R value of 5 is not enough for winter. You need the extreme to sleep on cold ground or snow.

Not sure if they upgraded it for the XR but I have the XT and it sleeps much colder than the R rating suggests. I'm usually a hot sleeper too.

Did you notice your XT performing differently depending on if the ground was wet (raining) versus dry? The first time I used the XT it was around 10 C, dry, everything was fine. The second time it was maybe 8-9 C but pouring rain and I could feel the chill seeping in immediately. Same sleeping bag.  My old sleeping pad was a self-inflating with a similar R value and I never had issues feeling cold even dipping down to below freezing overnight.

Yeah, I agree. I regret not getting the Nemo Tensor like my friend did.  Interestingly we swapped pads after I got cold because she had the much warmer sleeping bag, and she didn't notice any coldness. But on the days we swapped it wasn't raining. On the last day we swapped back, it rained again, and I was cold.

Nemo Tensor is probably the best alternative. I wish I got that instead of the S2S myself.