With DD1, DS and DD3 I shared a two bed room for one night and then went home, I went home not because of sharing just because I hate being in hospital. After I had DD2 I was put in a single room near the nurses station because they wanted to keep an eye on me/us, then a double room for one night, then home, then after one night home she was admitted to the SCN and I was given a single room with a double bed (and fridge ) for two nights and the same room again for one night before she came home.
Although the thought of sharing a room never appealed to me it was never as bad as I expected. Some times my babies and kids would have been the noisy ones, sometimes my roommates babies and visitors have been the noisy ones. The hospital I had my last two at were pretty strict with visiting hours and they are only in the afternoon so that made things better. The bathrooms are always cleaned many times a day and there has always been a covered bin for dirty linen so no seeing any of that. The last lady I shared with her baby wouldn't feed so cried a fair bit during the night but I found as I knew it wasn't my baby it didn't really keep me awake. I could tell that she was quite upset and worried about disturbing me so I made sure I told her not to worry about that and that it wasn't bothering me as she really didn't need another thing to worry about.
Mdk, I have always found the curtains the divide the room give enough privacy so no one can see you if that's what you are worried about