NEMO Eclipse All-Season Sleeping Pad

This is where the Eclipse really delivers. On my first overnight test — pad firm at 80–90% — I got a full 10 hours of sleep and woke only once, with none of the side-sleeper numbness I half-expected from a firmly inflated pad. Letting air down to 60–70% the next morning didn't introduce any of the "balloon-y" wobble that thick pads often get once deflated; the vertical, dimpled baffles held their shape throughout. I also specifically noticed the raised side tubes gently nudging me back toward center overnight — a feature that on most pads is more marketing than reality.

Rated at an R-value of 6.2 — about 14% higher than the Tensor All-Season and 27% below the Tensor Extreme Conditions, both of which use a similar floating reflective-film insulation. In my own testing, the All-Season holds warm to around -6°C / 20°F, and I'd expect the Eclipse to land in a similar range, though its extra half-inch of thickness could work against it in truly cold conditions. On the actual overnight test, ambient temps only dropped to about 2°C on already-damp, sun-starved ground — solid confirmation this is a warm 3-season pad, but genuine sub-freezing performance is still untested and on my list to push further.

Nemo advertises the Eclipse at 560 g; on my own scale it came in 2 g under that, at 558 g. That puts it right in the middle of the ultralight pack — within an ounce of comparable pads like the Exped Ultra 6.5R (551 g), the Tensor All-Season (530 g), and the NeoAir XLite NXT Max (542 g). It only comes in a rectangular shape — no mummy version, which would have shaved off roughly 20% of the weight.

This is where the Eclipse really shines. It uses Nemo's LayLo valve — the same one across their whole pad lineup — mounted on top of the pad, so adjusting firmness mid-night doesn't mean reaching around or flipping anything over. Crack the flap, let a little air out or add a little in, done. This might be my favorite valve system on any sleeping pad right now — I honestly wish every manufacturer would just copy it. Works well with either the included inflation bag or a pump.

Shell is 30D nylon — ripstop on top for grip, plain weave on the bottom for puncture resistance. Uses individual welds at each dimpled point rather than continuous seams; earlier Nemo pads had some issues with pinhole leaks at weld points, but that appears to have been resolved in this generation. Backed by Nemo's lifetime warranty.

Nemo bills it as a quiet pad, and it mostly delivers — no crinkle, minimal squeak, even moving around on rock or a tent floor. The material does have a slightly rubbery feel underneath you, which won't bother most people but is worth knowing about if you're sensitive to that kind of texture.