Sea to Summit Camp Plus SI Pad and Sea to Summit Comfort Plus SI Pad look almost identical, when you see one you have seen both. But not so visible differences related to the shell fabric make them very different. This is discussed here in detail.
Testing Sea to Summit Camp Plus Self-Inflating Mat in the Mountains
The Sea to Summit Camp Plus Self-Inflating Mat is more or less self-inflating, very thick, suitable for camping in all seasons, and compact and light enough even to be carried in the backpack.
Sea to Summit Comfort Plus XT Insulated Sleeping Pad
The Sea to Summit Comfort Plus XT Insulated Sleeping Pad is an advanced 2-layer construction with a high R-value, built in two sizes, compact and reliable.
Sea to Summit Comfort Deluxe SI Sleeping Pad
The Sea to Summit Comfort Deluxe SI Sleeping Pad is thick self-inflating, built in four different sizes, and with a very high R-value for all weather conditions.
Sea to Summit Ultralight SI Sleeping Pad
The Sea to Summit Ultralight SI Sleeping Pad is self-inflating, insulated enough for up to two seasons use, and light and compact enough to be carried on the trail.