>>2794808CCF is good but I usually prefer inflatable because I can get a flatter surface on uneven ground. Really good winter pads like the thermarest x-therm reflect so much warmth that you can get away with a lighter sleeping bag and you even feel warm when everything is wet.
The reason CCF gets so much hate is because normal people can no longer sleep on their back because of too much sitting, stiffness, weak glutes and core, and bad posture and hip issues, and a general aversion to athleticism.
CCF is always quicker to set up, more convenient, more reliable and rugged. When I go for a short weekend hike in the summer I almost always take a 300g folding pad.