Surprisingly, even if the baby can sleep well for 16 hours per day, it's still possible that birth injury is interfering with its daily routine. For example, it might be more difficult to fall asleep at night because of pain caused by an injury sustained during the birth process.
It should also be noted that the trauma from a difficult labor could cause doctors not to resuscitate infants if their heart stops beating. One study found babies delivered vaginally were 50% more likely not to receive successful resuscitation immediately. After delivery or within one minute of having their absent or weak pulse become measured as present again.