First of all, this mattress topper is not made of memory foam, it is just regular foam. It did have a firm feel to it, and measured exactly what they said it would, but is not the dense memory foam I was expecting. I bought this topper because my mattress was too hard for my girlfriend, and this topper gives just the right amount of softness to compensate. Second, the mattress pad is of good quality, but is nowhere near 1.5 inches thick. As it turns out, it meets the need and is comfortable, but if you're looking for real memory foam, this is not it.