After much research we ended up purchasing the Graco Pack & Play playpen for our son. It was a good deal price-wise and it looked the nicest design-wise. It was super hard for us to figure out how to get the sides to stay up. I am not joking! You do like the instructions underneath the mat say in the bottom of the playpen and pull up on the handle while squeezing in until the bars on both sides of the handle clicks into place and locks in. That is what is supposed to happen anyhow. It took us forever to get all the bars locked in. I think about 45 minutes at least. We are too afraid to put it down for travel use as we feel it would be stressful to get it locked in again when we go to visit someone. Works great other than that though!