My baby is breast fed when I'm with her, and bottle fed breast milk while she's at daycare. Shortly after I went back to work my baby's sleep patterns seemed to regress. She had been sleeping for 8-10 hours straight at night for about a month. When she was nearly 4 months she suddenly started to wake every 3 hrs or less for night time feedings again! She's 5 months now. It has been challenging because I rarely get more than 3-4 hrs of sleep in one go. Luckily she does go back to sleep right after she takes what she wants. When does a breastfed baby usually sleep through the night? I'm wondering if she is just wanting the closeness because she's away from me at daycare all day. Is anyone else going through something similar?