Hi, I keep reading that the longest a baby can stay awake is 2 hours then they conk out!! I remember DD1 was textbook and would fall asleep practically to the minute on 2 hours. My darling twins seem to be pushing this to the limits...... DD2 has gone 3hrs35 and DS1 4hrs15 without sleeping and getting more and more irate!!! This is at about 6 weeks. I wonder what the longest time a baby has gone?!