If you’re in need of a larger playpen, the Delta Children 36″ x 36″ Playard may be a great option for you. At three foot square, this playpen gives baby lots of room to play and explore. It also has fun animal designs that children love. This playpen comes with a mattress and carrying bag, and it folds compactly for storage and travel. This playpen is on the heavier side at 28 pounds, and some consumers report that setup and breakdown is more difficult than with other models. (Check out the video below to see how to break it down for storage.) This playpen is not recommended to use for sleeping as it does not come with a bassinet feature. Some consumers have reported issues with the bottom pad not lying flat.
She continued: “It’s as if you asked a climate-change scientist whether the fact that you bought a Prius would make a hurricane less likely in New Orleans this summer. Carbon makes a big difference and so does care-giving, but not at that scale. Of course if you kept a baby confined in a playpen and never took him out that would probably make a difference, but nobody actually would do that.” While science does suggest crawling strongly influences the way babies think and learn, she points out “babies in playpens are crawling and exploring too, of course.” Her last bit of advice? “Parents should try to think not ‘How will this affect my baby in the long run?’—who knows?—but ‘Is this helping my baby and me to thrive right now?’ ” That, she says, depends on what you and your situation are like—and only you know that.
I had been using the colorful 8-panel North States baby gate from the time by babies were 6 months-one year. But once they were learning to climb the gate with their toes in the little holes (and use their baby muscles to pull the entire gate down), I knew it was time for a more sturdy option. This fit the ticket, it's not as large as the North States - but plenty large enough for toddler twins (with more than enough room for mom and/or dad to play in with them as well). It's also a few inches shorter in height to our old play pen, but it's not an issue with our 28 & 29 inch boys because the openings/holes on the play pen are low enough that when they step on them, it's more than tall enough to make them unable to climb over. ... full review
Do not use the play yard once your baby has outgrown it: Stop using the play yard right from the day your baby outgrows the recommended age. You may be tempted to use it for some more days or weeks but this can be very dangerous since play yards are designed to meet the specific height and weight requirements of babies of certain age. The build materials may not be able to sustain the increased weight of a baby who has outgrown the recommended age of the playard thus posing a risk of injury.

When your baby is a newborn putting them low to floor can cause major strain on your back so you'll want to shop for a playard that has two levels so you can have them higher when they are younger and then move them lower when they learn to roll over. This model from the popular Graco line does all of this at a reasonable price and has some added features like a mobile and pockets on the side to store, diaper, wipes and such. 
Bought this for my 9 month old who is crawling and cruising around his pack and play but needed something bigger. Very happy with this purchase except the suction cups don’t work well on my hard wood floor which was mentioned on the paper instructions but wish it was mentioned on here. That’s pretty much why I bought this one. Still sturdy though when my baby pulls himself up and stands holding on to it. Overall, baby loves it and I highly recommend it!
For Dr. Marcie, you can't start practicing too early. While your baby's in the womb, you can begin building habits that will work not only when things are fine and lovely, but also when you're facing an epic potty-training crisis. Building a solid foundation for interacting with your kids can make life a lot more fun, because you know what to expect — and so do they.
Be sure to check the floor pad. It should also be no more than 1-inch thick, snug-fitting, and firm enough to protect your baby from falling or rolling into the loose mesh pocket that can form between the edge of the floor panel and side of the play yard (a suffocation hazard). We think it's safer when models have slots on the floor that allow the mattress's Velcro strips to be inserted and secured on the outside of the play yard, making it difficult for a baby or toddler to lift the mattress and possibly become trapped under it. Avoid models with a mattress that fastens to the bottom of a play yard only with Velcro pads that a child can access from the inside. Use only the mattress or pad that comes with your play yard.
• On some models, the safety straps on the changing-station insert can also be a strangulation hazard if they form a loop beneath the changing table, which is another reason to remove a changing table when your baby is in the playpen portion of a play yard. Check to see that your baby can't push down on the bassinet or changing table insert because of the danger of strangulation and entrapment. Changing-table straps should be sewn down or otherwise securely fastened to the changing-table surface, so that they cannot form a loop that extends into the occupant area of the ply yard.
It's helped us out tremendously. It provides a way for us to cordon off a safe space for our son while allowing him an area to freely move. The fact that it breaks apart and can be arranged in various patterns allowed us to expand that space with some creative use of furniture. Sadly though like all young raptors, he's testing the gates, looking for weaknesses that he'll eventually use to escape and terrorize the local populace of cats.
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