AILEEKISS Collapsible Wagon Stroller for 2 Toddlers with Adjustable Canopy, 44 Pounds, Grey - Walmart.com
Babies are used to being in a tight area. Swaddle help give them feeling.
Newborn Sleep Sack Baby Swaddle 6-12M
We got this one for our 4 month old. I love that there is a "plate" for the bottom so their feet are sitting on something. The plate is movable to grow with the baby.
Ingenuity Chambray 2-in-1 Baby Jumper and Activity Center, Ages 6–24+ Months