Our son had been doing okay sleeping 4+ hours at a time through the night until about 3 and a half months old he started waking every 2 hours. Starts off as just making noise and light whining eventually crying himself awake if not attended to ( breast feeding, or picking up to put back to sleep). Sometimes we give him a pacifier but it usually doesn’t help. He’s now 4 and a half months old and we are running out ideas. He still naps only being held through the day, he will wake up soon after placing him in his crib for a nap. He will also take a while to go to sleep/nap usually crying and whining for 10+ minutes while being held and bounced and sung too until he falls asleep. Currently taking three naps a day for a total of 4+ hours. He was getting 5+ hours in 4 naps until a couple weeks ago. We’ve been trying to get him to nap in his crib but it’s been difficult, but if we could just get him to sleep through the night we would have more energy to work with his naps throughout the day in his crib.
He is breastfed only, and about a week or two before he started the 2 hour only sleeping at night mom went back to work and he has been bottled breastmilk during the day during the week. Night and weekends only fed from the breast. Not sure if this change has anything to do with his new sleeping habit.