I am very happy with the support provided by this pillow.  I am 6'0, 227 lbs. and the 3.0 works great for my side sleeping.  This is not a gel cooling pillow, but it doesn't make me hot either.  As others have mentioned, the cover is slippery, so you do need a pillow case that secures at the end, otherwise it will be half-off by morning.  Very satisfied with my purchase!