I have a 5 week old, and she is inconsistent on getting to sleep. I've been b'feeding about every 3 hours (sometimes takes her 15 minutes... sometimes 40), diaper change, then about 15-20 minutes of activity. She starts to yawn at this point, and after the second yawn, she starts to cry and wiggle and act unhappy. I put her in the crib and start to shh/pat. The first 15 minutes is typically crying as she tries to get her fist to suck on. Then she's calm, but suddenly whimpering/crying as soon as she hits REM sleep. Even after 30-40 minutes, I barely see her enter REM sleep. I gave her a pacifier to help start naps 2 days ago, but she will wake up screaming for it every 10 minutes, so I've given up on that.
She did the same yesterday, got OT, and stayed up 2 hours straight. I managed to shh/pat her down this morning after she did the 30-minute wake, and she slept the rest of the way. She barely woke up during the next feeding, so I just put her straight back down. She slept 4 hours after that. (I had pity on her and let her sleep since she was awake and crying so much of yesterday.. she woke up very happy).
So it's typically 30-50 minutes of patting and then she'll sleep about 30-45 minutes. Any suggestions as to what's going on? I thought it could be lack of activity, but she really is unhappy at the 20 minutes mark.