Would you sit on a deflated balloon?

Yep...

The fabric upholstery used in the chair also replicates the texture of a balloon but hopefully it’s not as slippery as most balloons. It is also lightweight enough that you can easily drag it to different parts of the room unlike with regular bean bags or even regular chairs that can sometimes be too heavy. It comes in different pastel colors as well including blue, pink, green, and orange. They want you to have the sense of “floating” but also it is capable of holding you upright if you need to be… More here.

I would have this in my house, I would have 10 of them.