Intellectually, I know that new mothers don't magically disappear. I know because I have seen them post to Facebook and sometimes I see them walking around. There is some sort of life after birth, but from what I hear it doesn't include any sleeping, watching TV, reading, or cooking. My life will be at the mercy of a capricious baby, whose demands will compete with my own and I will be lucky to survive it.
But at the same time I think that I will have some time to myself. If newborns really do sleep 18 hours every 24 hours, even if I "sleep" for 12 of those hours I still have 6 hours to do other things with (even a large amount of mess and laundry does not take 6 hours to take care of). Maybe I'll be too exhausted to do chores, but then I can at least watch TV, right? Anyway, I am enjoying my life while I can, and I hope I can enjoy it with my daughter in a few weeks too.