
Exped
MegaMat Series
Car camping comfort king; warm and durable.

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Ok product. Don’t spend any more though. I’ve had the yellow ow for a while now and it’s adequate but the bonded ridge construction is kinda gimmicky imo. Doesn’t seem to matter that much with sleeping bag and with a quilt is kinda pointless. Also slide on top more than I thought I would Warmth is also mid. Built quality in mine is fine it’s really just the design imo.
I've used this inflatable mattress for ~10 years. https://klymit.com.au/products/insulated-static-v-sleeping-pad-1 They are good for side sleeping. Like all inflatables they can puncture, so a good tent footprint can help. They pack up small and don't weigh much. They also aren't noisy when you roll around on them.
Look at the Klymit Insulated Static V. I switched to it from a more expensive (and noisy!) Thermarest pad and have spent lots of August nights in the sierra with no problems. It’s a bit heavier but durable and you may find refurbished ones that are cheap.
That's a good pad. I have one. Although I heard that they had some... ahem... Issues... With their R ratings. If it's really cold I layer it with a Nemo switchback. That setup paired with two sleeping bags (and a fair amount of clothing) kept me warm enough (though not exactly comfortable) in temperatures at least -15 F.
I definitely notice a CONSIDERABLE difference when I sleep on my pad. I can have all the blankets in the world and be cold but I add the pad and suddenly I'm toasty warm
Probably depends a lot on the ground temp too. 40 degree air temp at night but warm days might do ok. Early spring and 40 degree nights would probably fare worse
Yeah, these are too uncomfortable for me to sleep on with my back problems, but as far as durability, I have one of these for my 85 pound dog and it’s held up just fine even with his nails

Exped
MegaMat Series
Car camping comfort king; warm and durable.

NEMO
Tensor Series
Lightweight side sleeper favorite, but polarizing on warmth and noise.

Exped
Ultra Series
Comfortable, quiet side sleeper pad; compact for backpacking.

Big Agnes
Rapide SL Insulated Sleeping Pad
Comfortable with unique side rails; R-value and durability disputed.

Therm-a-Rest
NeoLoft™ Sleeping Pad
Very comfortable; a bit heavy and bulky for backpacking.

Ranked #1
Exped - MegaMat Series

Ranked #1
Exped - MegaMat Series

Ranked #1
Exped - MegaMat Series

Ranked #1
Exped - MegaMat Series

Ranked #1
Therm-a-Rest - NeoAir Xtherm Series