I have a deep mattress with a 4 memory foam topper, so my mattress is almost 23 deep. I have been looking for deep pocket sheets everywhere and to most places, they think 15 - 19 is deep! It's not! They fit great, the color is perfect and they feel great! It's also nice that you get 4 pillow cases, it's an amazing score for the price. And, to make it even better, they came to my work really fast. I would highly recommend them.