It seems like my baby sleeps all the time. Could there be something wrong?

How old is your baby? Baby sleeping times differ depending on his age: 0-6 months: Infants need about 16 to 20 total hours of sleep per day and will wake up every 2-3 hours for feeding. By about four months, most babies sleep 10 to 12 hours at night (with a feeding or two) and nap for 3 to 5 hours of sleep a day. 6-12 months: Babies typically sleep about 11 hours at night and take two daily naps of about 3-4 hours. 1-3 years: Most toddlers need 10 to 13 hours of sleep, which includes an afternoon nap of 1 to 3 hours. http://www.whattoexpect.com/first-year/sleep-child.aspx