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

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The older you get the more you go for comfort. With that said, I switched my terrible regular neoair xtherm with a large rectangular sts comfort plus xt mat and sweet baby jesus it's so nice! 1200grams tho.
Yeah, S2S Etherlight models have a bit of a bad rep for not being the quietest of cleeping pads whereas my S2S Comfort Plus XT is extremely quiet. For summer use only (and not near freezing temps) I use a Tensor Nemo Trail which is extremely quiet and the Exped Ultra 3R is also extremely quiet. A simple hack for eliminating the squeaking noises is to put a layer of spare clothes between the pad and the tent floor. If that's not possible consider having a pad liner made from a lightweight fabric that'll go over the pad much like a duvet cover. I made my own from a cotton/silk blend that I also used to make sleeping bag liners as I dislike the sensation of pure slik against my skin. The only completely silent option is a closed cell foam matt, but as a side sleeper myself I know they typically don't work out well for sleeping on your side especially if the ground is quite uneven.
Since weight isn’t a concern and you’re staying in one place, comfort should absolutely come first. The Exped Megamat LXW is kind of the gold standard for plushness — it’s wide, super supportive, and feels almost like a real mattress. It’s bulky, but since you’re not carrying it, that doesn’t matter much. The Sea to Summit Comfort Deluxe is also great, but the shorter length might be annoying at your height. Your feet will probably hang off a bit unless you sleep curled up. The Comfort Plus 8cm version is nice too, but it’s more of a premium backpacking pad, not a “sleep like home” pad. If you want to sleep well all week, go with the Exped. You’ll wake up rested and not sore, which matters a lot for long ski days. The S2S pads are decent backup options, but you’ll probably end up wishing you went for the thicker, wider Exped after the second night.
I have the Sea To Summit comfort plus. It’s nice and thick and not too heavy.
I have the non-ul version of that StS pad and I love it more than any other pad I’ve used in the last 20 years…
I currently have a sts xt version and compared to the zenbivy ultralight it’s very uncomfortable. The 7r pro looks like it might be more comfortable but not worth the risk. Reviews are winning my choice. Will post post Azt.

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