Pack and plays, also known as play yards or playpens, can really streamline the first few months of life with your little one. Thankfully, playards today are heavily-regulated items, with Consumer Products Safety Commission (CPSC) guidelines testing them regularly to ensure that they won't tip over, trap, or otherwise hurt a baby, and that they match the parameters stated by the manufacturer. That being said, there's a lot that goes into a pack and play decision, and a ton of different styles, so it's best to have all the facts before making a purchase.