graco pack n play instructions‘s mat is an issue brought up by some. Some like a mat cover that can be removed and washed, although the mat is made of vinyl that can be wiped clean. A zipper on the side or Velcro might have done the trick, say some owners. A graco pack n play lowery is a system that includes a big play yard, a bassinet insert designed for newborns and a transportable changing table fixture.