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

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Typo: I meant ProLite. It was their original pad, and is still a classic. The current model is Trail Pro. It is slightly heavier (and more durable) than the original. https://cascadedesigns.com/products/trail-pro-sleeping-pad Surplus military pads sell on eBay. Try “USGI sleeping pad” or similar.
I really like the Therm A Rest Trail Pro. It's bulky and heavy, but it's extremely comfortable and easy to sleep on.
Thermarest still makes them? I have also seen knockoffs even in non specialty stores. I have an older Thermarest Trail Lite and Trail pro. The only difference to the classic mats is a few cutouts to make them pack smaller. I adore my Trail Pro. Very comfy, good R value, thicker than the traditional pads, packs reasonably small for it's comfort.
Still on a Thermarest TrailPro and the Nemo Fillo Pillow and haven’t had any complaints. I also have a Big Agnes Rapide which is thicker but takes longer to blow up vs the Thermarest.
I would strongly recommend not getting a shorter mummy style. You will absolutely regret it if it gets cold at night. I have a Thermarest trail pro light in a petite size and can’t even describe my hate for it. It was super slippery and I just kept rolling off of it. It was also so narrow at the bottom that my feet ended up freezing. To make matters worse, the stuff sack is so tight that it was impossible to get back in. It also never really inflated on its own. I switched to a 4-season Tensor this year and I can safely say it was a game changer. It is pretty easy to inflate with the sack, very lightweight, and actually fits into the sack with little problem. It is also very comfortable. Saving a few grams isn’t going to be worth it if you can’t sleep and are miserable at night.
My first winter camping trip is one I’ll never forget, my back was killing me after trying to sleep on a foam pad. The next trip, I brought a Therm-a-Rest Self-Inflating Pad and it literally changed everything. Suddenly, I was sleeping warm and supported, ready for morning hikes. I’d recommend [air mattresses](https://www.reddit.com/r/KeepThisInMind/comments/1ltzxk1/recommend_the_air_mattress_best_for_camping/) for camping to anyone, from lightweight backpacking pads to thick car-camping mats, especially for winter trips.

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