how much sleep

How much should my week an half old baby sleep. Shes asleep all day an night only wakes to feed an change..an sometimes she will be awake after I feed her for like 15 mins an doze off. Is this normal should I be concerned??

03
    03/14/14
    Newborns sleep a lot – typically up to 16 to 17 hours a day. But most babies don't stay asleep for more than two to four hours at a time, day or night, during the first few weeks of life.
    0
    03/14/14
    My daughter was like that but with breastfeeding. Soon she'll develop a better sleep schedule. If your worried I would talk to your pediatrician.
    0
      03/15/14
      Aubrielle was up at LEAST every other hour until she was two weeks old. Then, it was every few hours until she was a month old. Once she turned a month old, she magically started sleeping through the night. She'll be 4 months on Wednesday and (knock on wood) she still sleeps through the night!
      0
      03/15/14
      I've been the one who's had trouble sleeping the past couple of nights! But, my allergies are pretty bad right now!
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      About misty
      Current: Smiths Creek, Michigan
      Birth: April 09
      On Moms.com since: Mar 14, 2014