As far as lifeboats, not sure. Would have to ask my husband.
Berthing is based on seniority and you cannot request new berthing. Everyone sleeps in "noise". Much of the berthing is right under the catapults. You just get used to it.
What they can do on line is limited according to government computer policy - i.e. No Youtube, Myspace, etc. And it also depends on the server connection. My husband sometimes will go into work early - i.e. 3-4 am if he wants to do anything on the internet. You can't get onto personal email like Yahoo, AOL.
The "Girl in Every Port" mentality has really gone out the window in the modern Navy. There are the young single guys who do stupid things, but it isn't nearly like it was 20-30 years ago.