Dura 6R

Exped Dura. It has down. I have the 6R LW. You can get a slightly lighter version which is lighter due to thinner face fabrics. Avoid StS Etherlight XT at all costs, as I have had two getting pinctures where the dividers attach. Constant flats from just lying on them. And I am not the only one. This is why I bought the Exped Dura.

Expeds seem to be durable, I really like how comfy mine are also

I have the dura 6r, and ultra 5 mummy which hasn’t been used yet, the dura pad seems insanely durable although the ultra seems like it will be fine for durability also, seems like they are known for reliable sleeping pads so easy to reccomend

R-value just tells you how much it will insulate you from the cold, nothing about thickness or comfort. I have a exped dura 6r and it’s thick enough that I never feel the ground through it, though fully inflated it can be a bit too hard. There are some pads with memory foam on top but that adds a lot of bulk.

I've had four Expeds. Still have two. Both have the built-in pump. One has synthetic fill. The other has some down insulation which makes it good for ~10F colder than without. The first two developed tiny leaks (could not find them even with submerging). They were a few years out of warranty. Exped still replaced both. I appreciate a company that stands behind their products. I also like side-sleeping. I have not used these as much as what you will. So durability...🤷

Exped Dura is solid as a rock and makes some very warm options at 5R and 8R. It is a bit heavier but also a much thicker denier of fabric. The Ultra series is a lighter version with thinner, more standard denier of material.

Exped is good, several models depending on what kind of camping. For reference I’m 6’ 330lbs. MegaMat/DeepSleep used for car camping. Dura used for backpacking. You may also be able to use furniture foam which would be cheaper and can be cut to different sizes.