Sorry no one has responded sooner. I just returned from 2 Alaska cruises and getting back on the boards. I have actually done the 2 Moms and 2 teenage girls a couple times on cruises and although not a luxurious experience, totally doable. If you are lucky, as I was, the teenagers will be on a slightly different schedule than you and the bathroom will not be an issue. The "Moms" were up and out in the morning while the girls slept in; in the evening for dinner, the "Moms" dressed first and then went for pre-dinner cocktails at one of the lounges - freeing up the cabin for the teens to get ready. Worked great! As for bed configuration - depends on what category cabin you have on the Paradise. In most cases there will be 2 pull down berths for the 3rd and 4th passenger. Personally,other than having to climb up to your bed, they were of the same comfort level as the two main beds. Enjoy!