@MissDaphne - I think perhaps a surprising number of babies don't get enough sleep. My second baby was a better sleeper than my first and I was worried he wasn't getting enough to eat and that all that sleep was a problem. Then I asked the pediatrician, and she said that some newborns sleep for twenty hours a day!
Apparently, under two months of age it is unusual for a baby to be awake for more than an hour at a time! If you have a tiny baby who is routinely awake longer than that, it might be that baby is having trouble falling asleep. Especially if baby seems cranky after the first hour or so, try helping baby fall asleep by swaddling, rocking, maybe giving a pacifier, etc. An infant sleep "schedule" may be impossible at first, but try to help baby find her own rhythms.