If you are looking for something that is lightweight and can be set up easily in your living room or on the go the Lotus Travel crib from Guava is just the thing. The Lotus play yard has a fully zippered side panel allowing parents to lie down with their children and help them go to sleep or encourage tummy time and beyond. The mattress is thicker than other travel pack 'n play competitors, ensuring your little one gets a comfortable nights' sleep. It also has a wide opening at the top which makes it great for playing on the go since your little one won't feel smushed in. 
The word, on the face of it, is rather contradictory, combining play—a word with inherent jouissance—with a suffix that suggests confinement. Given that even pens for livestock have fallen under scrutiny—battery cages for chickens, for example, are critiqued because in them, hens “endure high levels of stress and frustration”—it’s not surprising to find parental discomfort with a product that seems so, well, penitential. Of course, the word yard itself has prison overtones, and when examining a product like the “North States Superyard XT Gate Play Yard” it’s not hard to get some serious Gitmo vibes. (Such misgivings about the playpen are exemplified in sculptor Robert Gober’s X Playpen, a bifurcated enclosure that, as one critic put it, “emphasizes this domestic space’s claustrotraumatic quality.”)
My son and I found this playpen to be very enjoyable. The set up was very easy and was done in several minutes. The sides slid into one another. My almost 2 year old son was not able to get the sides apart and break out. The plastic sides were good quality. They were thick enough plastic without being overly heavy. There is a door with a lock. My son was unable to get out of the door when he tried. When I opened the door to let him out, he wanted to get his sister or me and bring us into the play pen. There is a basketball hoop in the playpen that you screw on by a twist of a cap. It is on pretty sturdy although the hoop itself is bendable. This was a very enjoyable activity for my son. The sides do not have to be installed at a right angle. They hold in place a couple of different angle in between. There are suction cups on the bottom of the fencing to stick to laminate or hardwood floors. I had it on carpet, so I am unsure if that works. Overall this is a good product. When it got put away in order to vacuum the floor, my son cried.
Had no clue about this policy with Delta. The fine print isn’t exactly clear, so I’m guessing your miles may vary depending on your gate agent and airport. I am going to have to investigate the other airlines (somehow I’m guessing they aren’t as generous). Of course – don’t forget Southwest’s 2 free bags that make this all a non-issue if you choose to fly Southwest.
I have hard wood floors and needed a playpen for my 8 month old daughter who likes to climb everything. I am so happy with the item I purchased and wish I had purchased in sooner. The ease of mind of being able to leave the room with my baby peacefully playing in her pen is amazing. It's large enough that it takes up the good majority of my living room, but not too large. However, it would be easy to remove panels to adjust the size. We never use the gate as it is low enough to step over, but tall enough where she cannot climb over the railing. The gate does move around and can be adjusted to fit whatever shape you need. I have not fussed with the suction cups to get them all to stick down, however, it is sturdy enough without doing so.
Only had a little while, but really not worth the money. Very flimsy can’t even lean against it when sitting in it. I bought it so I could let my son play while I did things near by; however I can not leave him unattended bc the way it’s made has perfect slots for them to be able to put feet in and climb up. Material is hollow plastic so it squishes also if pressed hard.
I cannot stress this enough with regards to any type of baby equipment. The number one priority is that it should be safe! Be sure to read reviews from parents and experts and keep an eye on product recalls. I would strongly recommend never buying a used playpen or playard; baby items are recalled all the time, and you’re much better off getting a new model that is proven to be safe.

In search of insight, Romper spoke with Dr. Marcie Beigel, a behavior specialist with over 20 years of experience. For Dr. Marcie, it's all about being intentional. If your kid throws a tantrum every time she gets in the playpen, she associates the space with being upset. Likewise, it doesn't matter how well you've stocked your playpen with toys if every time she gets in it, mom disappears. If you want to change the pattern here, "you have to make the space really fun and delicious and enjoyable," says Dr. Marcie.

Now, a simple visit to a site like Babies ‘R’ Us will confirm that, yes, playpens do still exist. But they seem to have been rebranded, for these devices are no longer called playpens. Instead, searching for the term on Babies ‘R’ Us will yield a range of “Pack n’ Plays” (a trademark of the kid-product manufacturer Graco, and which purists insist is less a playpen in the traditional sense than a traveling crib), and various takes on the “playard” (a word that seems vaguely French but is actually a contraction of “Play Yard”). Rather tellingly, a Google search for playpen seems to yield as many entries for contraptions to corral  pets as children.

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
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