Eclipse All-Season Lightweight Insulated Sleeping Pad

They supposedly used less material forming the baffles. Durability is a huge question mark, their original tensor baffle design commonly failed at the welds, so we’ll have to see how this performs but if it’s as good as the current Tensor’s, it should replace those models. All they need is a 4 layer version to replace the Extreme.

I find the "race to the sky" with thicker and thicker pads to be going the wrong direction, and would prefer pads no more than 3" or less. Four inches is just silly and unnecessary for most of us. With a mid-tent getting one's self closer to the ceiling isn't the right idea either. Hell, I'm 64 years old and still occasionally use a ccf pad (when you reach my age you'll understand). Pad thickness isn't and shouldn't be the sole arbiter of how well one sleeps. Pad construction matters. As a couple here have pointed out, a sleeping pads weak area is its sidewalls. That's why if you use a thin ccf pad in conjunction with an inflatable, the ccf pad goes on TOP of the inflatable, not underneath as is usually mentioned on this forum - that's completely backwards and incorrect. The ground maintains its temp pretty consistently, but the air temp is what one needs to be thinking about, and how it is "invading" the sidewalls of the inflatable. The ccf on top helps mitigate this "cold seep." The higher the sidewalls, the more surface area, the more pronounced the "cold creep." As to this new pad, it's obvious its construction is different than the All-Season... its baffles tend to make its chambers look like they run horizontal like many of the Expeds, rather than the "quilt pattern" of the Tensor. Not everyone will prefer that for sleep comfort. I don't. The theoretical .08 higher R-Value of the Eclipse, its one ounce heavier weight and unknown durability, despite a lower price, are not enticing to me - I also don't need or want a 4" pad. The Tensor is a known quantity and the bugs have been worked out. HYOH applies however... :)

Ordered from Nemo 2 days ago and it showed up on my front door today. https://preview.redd.it/9yxhopgblrdg1.jpeg?width=3024&format=pjpg&auto=webp&s=47a4d75edf638e898a8595630f01f00c625069af Guess we don’t have to wait

Doesn’t specify the denier anywhere. I suspect it is 20 top and bottom like the Zenbivy. The top and bottom though different colors feel the same. It is very comfortable and quiet.

Got mine direct from NEMO today.

I don’t see any fabric details published on it vs the Tensor being 20 denier nylon top and 40 denier nylon bottom.

If you shine a bright LED behind both you can see that the Eclipse does not seem to have reflective layers in the outer two rails, whereas the horizontal channels on the Tensor seem to have the reflective layers extend almost all the way to the edges. It would be nice to hear what the NEMO rep has to say. The ASTM F3340-18 standard for sleeping pads primarily measures vertical conductive heat loss to the ground, potentially underestimating heat loss from sides, convection, or radiation, especially in thick air pads. While it provides a standardized, comparable R-value, it does not fully account for edge heat sinking, sometimes resulting in pads feeling colder than their rating suggests

If you shine a bright LED behind both you can see that the Eclipse does not seem to have reflective layers in the outer two rails, whereas the horizontal channels on the Tensor seem to have the reflective layers extend almost all the way to the edges. Can you confirm? That said, I find the Eclipse more comfortable than the Tensor. I typically have to deflate the Tensor a bit to make it comfier and that likely sacrifices some of the insulating value. The ASTM F3340-18 standard for sleeping pads primarily measures vertical conductive heat loss to the ground, potentially underestimating heat loss from sides, convection, or radiation, especially in thick air pads. While it provides a standardized, comparable R-value, it does not fully account for edge heat sinking, sometimes resulting in pads feeling colder than their rating suggests

Side sleeper here. I use Nemo All Season. Very happy.

I have a previous back injury. I find the Womens S2S Etherlight to be the most comfortable, though the least warm. Next for comfort is the Nemo All Season, as well as the Nemo Tensor. In comfort, they are both just slightly less comfortable than the S2S. Both are warmer than the S2S. I have used the ExPed Hyperlight pad for about 40 nights. I believe this pad has been replaced with the newer version. Mine was a 2.8R value. For me, the warmth was equal to the S2S pad. It was not an uncomfortable pad. It just wasn't as comfortable as the S2S and Nemo pads. I tried the Thermarest NeoAir Xlite. My lower back ached when I used the pad. It just didn't have the support I needed. I wish I could use it as it has great warmth to weight ratios. I used the wide versio pads for each of these, though the Exped was a mummy MW version I would assume what is comfortable for me may not translate to you as your back injury may be different than mine. My injury involved the lower back. I have slept in a hammock a few nights and never experienced back pain.

I have that sleep pad and enjoy it. Keeps me warm and is comfy, like how it’s wide

I started my through hike with the Nemo summer pad and quite frankly was cold so I switched to the all seasons and was never cold again for the minor increase in weight. I found it to be worth it and now use that pad for everything.