I've got a select comfort bed. It has a nozzle for inserting air.
For the second time it has popped out. Select Comfort replaced
the mattress the first time. I'd like to glue it back myself.

The nozzle is hard white plastic and it is inserted into brownish
rubberlike pad with matching hole. The glue residue looks like
gorilla glue. Select Comfort says it is a trade secret what kind
of industrial glue they use. Sounds dumb to me.