I am looking for a large exercise mat. My workout area has wooden floors and I’ve been using an old folding foam mat for my exercises when I have to be on the floor. It’s the size of a regular yoga mat but 1” thick so it’s very gentle on my knees and back. But because it’s so thick, it’s also awkward when I do exercises where my arms or legs go beyond its edges, if that makes sense. I tried a regular yoga mat but it doesn’t give enough support for my knees or back. So I am looking for a mat that is thick and large enough for all the exercises I do, ideally at least 4’ x 6’. I googled a bit and it seems there are two kinds. Rolled mats and grid mats. Any diva with experience with mats for a home gym?