Please consider there a serious structural problems with the "wall" that is meant to separate the bedroom from the flat next door. You can hear even the smallest noises even a zipper opening. When the neighbours have sex your bed will move because the flats share a common floor thus not having enough structural independent for noise and vibrations. I informed the owner and it took her 2 months to tell me she needs another 2 months to study the situation and that no action would be taken. I've been sleeping on the couch.