Check the production date and packaging. Buy the play yard with the most recent date of manufacture. The Juvenile Products Manufacturers Association certifies that some brands meet current voluntary safety standards for play yards. This certification is not required by law and is not supervised by any government agency. Still, we feel a JPMA certification sticker offers some assurance that a product meets the safety standard. The play yard standard addresses design problems of earlier models, such as inadequate locking devices or protrusions that can snag clothing and create a strangulation hazard.
Fisher-Price Ocean Wonders Aquarium Playard - This is the benchmark for comparison. When I had my first child, he was only in our house so this served as his napper and playard in the family room when we didn't want to trek to the bedroom. My first loved it. Napped easily in the bassinet, changed his diapers in the bassinet, easy to clean, set up, take apart, and the mobile was awesome - ran on batteries and had good songs. This was THE ultimate playard. In fact, we brought this back out ... full review
Nice to keep baby out of trouble at home. Once he became mobile we had to do an "upgrade" as we noticed he was starting to hit his head on the X shaped metal bars. We tried some alternatives but the best so far was wrapping the metal bars with pool noodles (see picture). You'll need 8 pool noodles and some cuts (buy some extra in case you mess up). Use 2/3 of a pool noodle to wrap the internal bars and the remaining 1/3 to wrap half of the external bar. The pieces will also need a longitudinal cut along the length to fit the bar in. You'll also need some small cuts in the middle of the longer piece to fit the center rivet, where the mesh is attached to the bars. We got the pool noodles at the dollar store nearby for less than $10 and since ... full review