FIRST up a warning - if you've ever crushed into a tiny seat for a long-haul flight this is going to make you jealous.
It turns out there are secret rooms on planes which passengers have absolutely no idea about... and they hide a pretty big secret.
The areas are only for the crew, and they're fitted out with BEDS so they can get some shut eye.
This isn't on every single plane you go on, but the big ones are bound to have them.
You'll be shocked by just how spacious the dens are too. There is room for plane workers to sit down, have some food or get some much-needed shut eye.