Ultra 3R

As far as $/warmth ratio, this one is the winner. $50+ cheaper than S2S, Therma, Nemo and really comfy. I love mine.

The 3R is a pretty incredibly value for an 18oz pad at around $150. The 5R is probably better for being in Maine outside of summer.

Exped Synmat Ultra 3R. The comfiest pad for side sleeping that I have ever found, and it doesn't make the awful crinkly noise like some other mats (e.g. thermarest) do. Its pretty robust too. If you want a higher R value, they go upwards in model number - e.g Ultra 5 or 7, but the Ultra 3 is perfect for 3 seasons.

This is what I use and love it.

No one in ultralight group odd going to recommend extra weight for a little comfort. I use a switchback and exped inflatable and think it’s great for all the reasons you list. Added r value, backup pad for some comfort incase exped gets leak, foam pad protects pad, etc. is better comfort, but not ultralight.

This is the pad that finally let me sleep

+1 for this pad. I find it to be extremely comfortable and it comes with the best inflation sack on the market…doubles as a waterproof pack liner.

From your post history you seem to be based in the Netherlands. What is your budget? Hikingsite has a second hand market with currenty a nice offer for a used exped 3R wide model. A comfortable and light mat, good for summer. And I'm going to put a new unused Ether Light XR mummy on marktplaats for 120 euro (instead of 165). Good 3 season option, comfortable, light, small pack size. Let me know if that's something for you, I'm not in a hurry to sell it.

As someone with two bad hips , and one bad shoulder . Exped mw 3r works for me (m would too) For a pillow, while not ultralight is thermarest compressible small, and I have a simple pillow for under my knees . I cut down weight , so I can comfortably carry it, and have room for what I need to still sleep bad (but tbf , I can't get comfy in my bed with 4 pillows , so that setup is the same level of comfyness for me )