My main complaint is that the top sheet is extremely narrow, more akin to a full or twin size (?) The bottom fits perfectly, even on my deep pillow top mattress, and it stays put. This emphasizes the lack of fabric on the top sheet even more. They also appear thin, so I doubt they have much stretch. Which could be advantageous if the top sheet wasn't so narrow. Another thing to note is that the color is more mint green than the moss green I was expecting, but I can live with that. I just mentioned it in case anyone else is picky about the color/shade.