I've had a variety of experiences on trips with a variety of arrangements.
96/98 Florida trips I don't remember much I think I slept with my sister in the same bed
03 I shared a bed with my father as my sister was too old
06/09 I got the sofa bed in a two room suite (oh relief from the snoring!)
I have also shared a room with a friend on school trips but not in the same bed (he was a good guy though, no trouble at all. More than I can say for others on those trips.)
Finally on my 2011 trip to Malta in Europe I saved all I could and paid for a separate room with my sister away from my parents and we got separate beds.
Personal space is key for me these days, when I was a kid it didn't matter so much but now... Next trip is next June to Malta again for a week. My parents offered the trip and I was very grateful, especially considering I am worth literally a negative figure right now, and they jumped through hoops to get a sea view room for a single occupant - me, since my sister isn't going this time. Luckily it wasn't insanely expensive.
I'm not ungrateful for the trip and I didn't want to seem snotty by asking for a separate room, but I'd genuinely, truly rather stay at home than share a room with my well meaning but slightly paranoid/protective mother and LOUD (did I mention he was LOUD?) snoring father for seven days. I need hardly any noise to sleep properly, so seven days of snoring would be torture... Can you say sleep deprivation? If that makes me a bad person I understand and I think I can live with it... I can certainly sleep like a baby in my quiet sea view room all to myself
