
Exped
MegaMat Series
Car camping comfort champ, but some side sleepers find it thin.

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The best at what? - Weight - Warmth - Height - Noise - Baffle arrangement - Inflation method - Shape (mummy, square, rounded) - Length type (full, 2/3, 1/2, true torso...) - Sleep style (side, back, stomach) - Color - etc... One person's ideal pad is another person's nightmare.
For quieter, go with something that includes foam padding. Moisture control, Im assuming sweat? I recommend geting a sleeping pad sheet. Silk ones are nicely cool to the touch. For side sleeping, the thicker the pad the better. You might enjoy one of these three: the Thermarest Mondoking (more air), one of the Exped Megamats (more foam), or a Hest (all foam). I hope you have a great trip!
Hest Foamy Wide or Hest Sleep System Wide, they are both 30" wide. If you act quick, REI has them for 20% off right now. The Foamy is not inflatable, it is dual memory foam. The Sleep System is a Foamy connected on top of an inflatable 4" pad, same material as a SUP so it can be inflated to your desired firmness.
I just looked on REI website and it appears the Hest Sleep System is completely sold out right now but was available leading up to the sale. It probably went pretty quick once the sale started on Saturday. They still do have the Hest Foamy Wide available and in stock at stores, at least here in CO. You could give it a try in store on wood carpeted platforms they generally have (at least that is my experience), assuming the store you go to has one. EDIT: Now a different link shows you can still order the Hest Sleep System Wide to be shipped to an REI store or to home [https://www.rei.com/product/203058/hest-sleep-system-sleeping-pad-wide](https://www.rei.com/product/203058/hest-sleep-system-sleeping-pad-wide)
Hest makes the most comfortable IMO but are more $$ and bigger and heavier. Great for car camping
If you’re not backpacking and can accommodate the space to bring it with you, I highly recommend a Hest mattress. It’s the most comfortable mattress/pad I’ve found.
If we car camp we use hest sleeping pads, they’re pricey but I’d say they’re just as comfortable as our bed at home. We place them side by side and put a blanket over top to cover the gap. They also hook together as well. In the backcountry we sleep separately because our inflatable sleeping pads move around too much, plus we like different firmness
I love my hest. It is expensive but well worth the price. I think this will be your best option for comfort

Exped
MegaMat Series
Car camping comfort champ, but some side sleepers find it thin.

Exped
Ultra Series
Lightweight side-sleeper comfort, but a bit pricey and bulky.

NEMO
Tensor Series
Ultralight side-sleeper comfort, but slippery and prone to leaks.

Big Agnes
Rapide SL Insulated Sleeping Pad
Comfortable with side rails, but heavy and warmth claims disputed.

Therm-a-Rest
NeoLoft™ Sleeping Pad
Very comfortable, good service, but 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