hai,my baby is 5months and11days old.he is active and have 9.65kg wt. not yet started to crawl,my concern is he does'nt sleep during day time at all ,sometimes 10 minutes,sometimes 20 minutes.at night he sleeps for 4 hours at a stretch and then have milk then wakes up every 1and half to 2 hours and he is fully awake by 5.30am.so in 24 hours he hardly get 10 hours sleep.what is the reason.when he is awake he is active and playful.no other sickness owing to insomnia.