Maybe they got to NL on Wendy’d bed flying like in Bedknobs and broomsticks, thinking they could rescue Bae. Only Pan was one step ahead.
You made me go and check screencaps from 221 to see if the 307 bed matches any of the ones that were in the Darlings’ bedroom. Alas it does not. That would have been a fun idea.
As for John’s umbrella, if memory serves, he’s got it in those set pics for a future ep.