Thank you kungfu. We have exactly the same thoughts, yours are more eloquently conveyed however.
Why are there so many here who think that if they have a nice DP then ALL DPs are exactly the same? 
The thought of myself and brand new baby in the same vacinity overnight as some scumbag tosser who I try to make sure I don't come across in day to day life as much as possible, makes my skin crawl.
The sort of man who would discuss loudly if "the woman next door (ie YOU) is getting her tits out yet" then rip the curtains open and guffaw.
Then does it again. And again. And again.. And refuses to stop.
The sort of man who would yell "give a fucking shit" if asked to keep quiet.
The sort of man who yells "shut your fucking baby up" if your baby cries.
And that's the nice side of them. 
Postnatal wards are collections of women and partners from all walks of life. There are some walks of life I would rather chew my own arm off than sleep next to.
Are we getting the picture? MsScarlett et al who STILL think this is a good idea - why? How?!?