Getting the plants into another room will be a great move , obviously giving more breathing room for everyone , also dividing the chances of having pests , mold , heat and a bunch of other issues i cant think of right now. So if one room gets mites for instance , you know , now you can have a back up room , also the sssd may take as much as two weeks or more to finish , so now you can have one finished room for clean up , and drying buds etc .....
I dont know exactly the height of your plants but expect 2 to 3 ish jump in height, it will happen rsther fast at light switch , then pretty much stop and buds will fill in , if it gets frightening , just rig a bend with string , rope , wire , whatever , it wont hurt the plant one bit ..... just bend slowly so as not to snap it....
I dont think you will need to go there, ( bending )
if its a bedroom , MAKE SURE no light is leaking in the windows or doors , go in there and make sure , light leaks are a kiiller....dont even play around with that.....