Jaster, my play-yard sit on the floor, not mat. I put it against 2 walls then right side is my TV console to support. The mat is slightly shorter, therefore, I secured a leapfrog activity table at the end and a booster seat to block the empty space. Yes, the suction doesn't work, if you have noticed the yellow connecting pc, I've reversed it to better secure them in place, if turn the other way, when push will go all out!!! I prefer mat cause I find it easier to clean and can see, if you use mattress, need to change cover, wet cannot be dry immediately, need to do more tidious cleaning work.