My 3 month old sleeps from 730pm-430am a feed then back down for another 1-2 hours. BUT, every tho he sleeps like a dream at night he refuses to nap during the day! It's seriously a kicking and screaming war. I am lucky to get 1-2 hours total for the day.
My 4 month old does. He wakes maybe 2 or 3 times to feed and then goes back to
Sleep. Try rice cereal with breastmilk or formula. I know some people are against it, but it works wonders. I do 1 tbs per every 2oz