Looks similar to this one
Pop Up Tent - Automatic Instant Tent - Portable Cabana Beach Tent - Fits 2 People - Windows and Doors on Both Sides - Water Resistant, UV Protection Sun Shelter - Carry Bag Included https://www.amazon.com/dp/B072PQDJP4/ref=cm_sw_r_cp_api_fabt1_dlC_A-.WFbXSP9F9W
I saw someone mention slumber pods. I hadn’t heard of them so I googled it. They are expensive. We bought a one person pop up tent on Amazon for $35. We haven’t used it for traveling but I think it would work. Can your son open zippers yet. If he can’t then I think it would work. You could probably even fit the pack n play inside the tent. ETA link Pop-up Tent an Automatic Instant Portable Cabana Beach Tent - Suitable for Upto 2 People - Doors on Both Sides - Water-Resistant and UV Protection Sun https://www.amazon.com/dp/B072PQDJP4/ref=cm_sw_r_cp_apip_FMyEQ7NxBBgD1
It's a "pop-up tent" you throw it and it pops up.
So much effort while these things exist, too.
For example, is something like this trash or gimmicky?
https://www.amazon.com/dp/B072PQDJP4/ref=cm_sw_r_fa_dp_U_7OjXBb7WWZTG5