Sea to Summit UL sleeping pad???

I would be very weary of a .7 r value pad.

I am, that's why I'm asking about personal experience. I read a previous BPL thread where someone spoke with an S2S representative and said the values were conservative (up to ~20%), but it still seems suspiciously low. Air is the best insulator to my knowledge and I don't see how something with any thickness could loose heat that easily. I also don't know how to interpret r values into direct temp conservation.

I normally work it out by looking at the Exped/Thermarest site, if you know the temp rating of two different R values its easy to work out.

Sea to Summit also makes an insulated version, with a 3.3 R value, at a weight penalty of about 3 ounces in the large size. That's only a savings of about 2 ounces over your current pad.

Thermarest Neoair and the new Exped Hyperlite pads are also worth looking at, with R values a bit above 3. The large/wide Hyperlite would save you about 6 ounces. Look at the REI dividend thread in the gear forum for initial impressions.

For 2oz I would go with the warmer one..

Got REI dividends to buy nice pad, have considered the other UL version, though it is only 2 inches thick, am side sleeper. Leaning towards the Exped Synmat Hyperlite though no plans to do trips with my 80 pound Boxer with a pad with 20 denier fabric. My Thermarest Trekker or Prolite plus 3/4 gets that duty. At REI did lay on the similar version to the above pictured and noted, the one with r value of 1 and 2.5 inches thick, it was pretty comfortable.

If your Exped is comfortable, contributing to a good night's sleep, then the weight is worth it.

First question would be . . . do you need a higher R value? Is your main concern padding/comfort, warmth or a balance between both?

If you're only trying to shave weight, I'd say keep the UL7 LW. Super comfy, worth the extra few ounces IMO. I've personally had a few failures of Exped pads, so I sleep on a NeoAir XTherm, but the Expeds were more comfortable while they were holding air. I know lots of folks have had plenty of long-term success with Exped mats, so take my skepticism of them with a grain of salt.

I tried out a new S2S Comfort Light Insulated pad in hopes that it would match the durability of the XTherm with the comfort of the UL7 LW. Long story short, it didn't. I actually think even the XTherm is more comfy. I also tried a Comfort Plus, with the dual chambers. That was pretty comfy, but also pretty heavy. I was still rather underwhelmed. I'll be sticking with my XTherm.

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