tiggz, hope you are managing to get some rest before the birth of your baby. Hope it all goes well.
Sorry that you didn't realise that your partner can spend the night in hospital with you. It's a shame that you weren't informed about that and it now seems like it was dropped on you 'like a ton of bricks' but what is obvious to some people might not have occurred to you.
Maybe look at it from your DP's point of view. If this is your first labour, it is likely to be a long labour, and will be exhilarating and maybe even scary at some points for him (have you seen "One Born Every Minute"?) So, he might be desperate to go home, change his clothes, get something to eat, catch up on some sleep whilst you recover in the hospital.
If the baby arrives at a reasonable hour, you might be able to get home, or you might be so tired sleeping off your labour that you don't care who is there or not there.
Yes, it is one of my (only) criticisms of the fabulous NHS that a post-partum woman then has sole charge of her new-born baby but until they find a better system, you will have to deal with it. In fact, that could be a mantra for most parenting grumbles!
Think also about the other women on your ward; they really don't want strange men around whilst they are lying their with their (sore) boobs out, bleeding and not at their best, but just wanting some quiet time with their tiny new baby.
Good luck, and a friendly word of warning, it's not a good idea to call NHS workers lazy just because they are following their working practices.