[Does so]

I would just slip down onto the floor behind the bed and wait. Sooner or later one or more of them is going to come in that bedroom door.

The bed doesn't offer much protection. I'd add ¾-inch plywood faced with steel sheet, with the steel towards you. I'd also add a chain, even knowing that the chain would pull off the door frame. And add to that front door a weighted treble hook or two.

And clips above the door to keep them safe during the day.

[MrB]

Size?