Not sure this is quite the right section but not sure where would be better...

Since my son was born we have co-slept and bfed to sleep... He is a good sleeper in terms of how long he sleeps for but he doesn't do it independently... He often wakes and needs resettling until I go to bed with him, and while it only takes 5-20 mins to feed him back to sleep on those evening wakings, it means that I can't take up any of the offers of babysitting that I've had... In case he wakes while I'm out. I don't believe that it's hunger that wakes him so I figure I should be able to fit in at least a movie or something... that wouldn't take more than 3hrs at the absolute longest.
So I'm looking at getting the NCSS but I feel bad, because the reason I'm feeling a strong need to do this is because I have recently begun a new relationship, and while she is totally not bothered by my needing to jump up to see to him in the middle of watching a movie and cuddling on the couch, I would kind of like to have the opportunity for some grown-up time to focus on us... just occasionally.
I feel like I'm pushing my son into sleeping more independently (we'll continue co-sleeping, not planning on moving him to a cot, just encouraging more self-settling) not because I think it's best for him but because it's something I want for myself... does that make me selfish? Is it bad to be selfish, just this once?