Dear all, my daughter (about 1 month old now) recently refuse to sleep at night. Sometimes she is crying no matter whether you put her down on her bed or even when you hug her in your arm.

She gave me signal that she is hungry (keep on opening her mouth and show me her tongue), for example, I already gave her 2.5oz formula milk, she finished all the milk, but she refused to sleep. 30 minutes later, she will start crying and show me the hungry signal again, then I will give her another 1oz in case she is really hungry. But.....another 30 minutes, she show the signal again!!!

I don't think a newborn baby can get hungry that fast, sometimes if I give her too much, she will vomit some milk out even though we have already done the "Burping" exercise.

I really out of idea now, is there anyone here can provide me some advice?     

To be honest, she sleep quite well during day time. No matter how you move/shake her, she also refused to wake up. I tried to play with her yesterday from 7pm-11pm, but she just didn't want to wake up. Eyes close all the time unless she is hungry which the time gap is around 2.5 hours. But night time, her eyes open big big even though I feed her 2.5oz - 3oz
My wife got wake up to pump breast milk, but for whatever reason, the production is very low (each time maximum 2-3 oz). Hence, normally baby day time drink breast milk, night time drink formula milk.