Static V Short Sleeping Pad

I went this exact route also. But just with an uninsulated static V for 2 years. OP if you're on a if you're on a strict budget, the regular static V is $90 at Canadian Tire, $80 on Altitude Sports (online only, out of quebec, but they are reputable and I use them often). If you have some flexibility, Altitude Sports has the static V insulated for $127 right now. If you camp primarily between June and early September, the regular static is all you need. Insulated would be much more comfortable outside of that range, but I did find the static to be fine in colder conditions as long as an appropriate bag was used. They way they're designed lets the bag stay a little bit loftier under you, as opposed to a flat pad that fully compresses your bag under you. Do not get the static V lightweight if you're worried about leakage. It's a much thinner material on top than the regular statics and I believe the dimensions are a tad smaller.

1. foam pads outperform their ASTM rating. I personally feel comfortable taking my 2R CCF pad down to freezing, and a number of people agree with the assessment that a CCF pad is 3 season capable. Most of those generic egg crate z-lite knockoffs are 1.7 to 2R which is fine for summer or even 2 season conditions. Sometimes you get lucky and get a true 3 season pad for cheap. 2. Your numbers are a bit conservative, but that also depends on location so it may be right wherever you are. For air pads, I’d agree somewhere near 2 is fine for summer, like the Klymit uninsulated pad is 1.9R and a fine budget summer pad. Thermarest neoair xlite is the UL 3 season gold standard at 4.8R. However as stated, CCF sleeps warmer in the real world and a 2R CCF pad will sleep just fine in a lot of 3 season conditions. for example I used a z-lite for every step of the AT and now a switchback for the Oregon coast trail, a 1000 mile LASH of the PCT, and the PNT. to OP, the main issue is do you find CFF egg crate accordion pads comfy? if you do, it is like unlocking a cheat code for putting together a cheap, light, comfy sleep system. I’m lucky in that one of these pads is enough for me but I only recommend it if you aren’t sacrificing sleep.

Ahh ok then yea low or no R-value would be fine in those cases. Klymit also makes a good lightweight low R-value pad, it's what I used in Texas and worked quite well in warmer weather. Not as heavy or thick as the one you linked, but much lighter and packs down smaller. Great if you're backpacking but there are better options if car camping imo. Exped Ultra 1R is also a good pad, the more insulated 3 and 5 are also popular for colder temps. I've used the Dura versions which are a heavier/more insulated version and it was comfortable. I've also heard good things about Nemo Tensor but have no experience with it.

My favorite is the klymit static-V pads, they make extra wide and doubles, insulated or not.

Did they change the valve? Both mine have twist valves.

I have tried many sleeping pads and have never had a problem sleeping on any of them. I have a Klymit Inertia X Frame pad that works great because it’s designed to go inside the sleeping bag. Love the fact that I never roll off in the middle of the night and is less likely to get punctured. It weighs 19oz. Will also add that I did a bikepacking trip in Canyonlands and had no trouble with my $69 Klymit. Meanwhile my brother’s brand new $250 Thermarest leaked air every night of the trip so he basically slept on the ground.