Hi, My daughter just turned 4 months. From last 3 days we are observing that she is sleeping more than her usual schedule. Earlier she use to sleep for 20 min, 3-4 times in a day time and at night from 7:30pm-5:30am, she use to sleep (in between we feed her in her sleep only) From last 3 days, in day time also she is sleeping 2-3 hours in single stretch i.e in day time also she is sleeping most of time. is this change in sleeping pattern normal?