@Bibiane4 **
**[Inappropriate comment removed in line with the Community Center Guidelines]
(- OK, that was my emotional initial reaction... if I opened the door to such a person, I would still be smiling & welcoming... but I'd have to say if I thought they might break the bed; my house, my furntiture, have to protect it.)
And all my furniture is extremely cheap, bottom of the range! It is the guest's responsibility not to expose it to more weight than it is designed to carry.
Tell them they are 'not a good fit' - Literally.
Seriously, you could ask if it was OK to remove the frame & have them sleep on the same mattress, but on the floor.....? Same mattress support, but does not break the frame....