We used the Slumberpod a lot when Mouse was a baby. We don't reach for it much now.
It's a blackout tent that fits over a pack 'n play. It also fits with room to spare over a Snoo (we rented Snoos from BabyQuip over multiple trips). It's for travel with a child who needs full dark to sleep, in a room you also need to be in.
As kids get older and more aware, it can start to feel like you're putting them in a cage. I know other people's kids love it, so maybe we just missed the window. We didn't travel much when ours were 1-1.5. Never normalized it for them. Both kids are now too big for a pack 'n play (which is what hotels usually give you), and Evan is very much not on board with kids sleeping on the floor, so the blow-up toddler beds folks use with the Slumberpod are a no-go for us. Now it's hotel beds, or a rollaway (with or without bumpers).
A couple of things to know going in.
You need a fan. It gets hot in there. Not optional.
Getting a video monitor to see your kid through it takes real fiddling. Don't expect to roll into the Airbnb, swing it up, drop the monitor on top, and head out to the patio. Build in some time.
It packs pretty small and fits in a suitcase, about as big as a large pair of men's shoes in a shoe bag.
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