Hi my baby is not sleeping well these past few nights. Help!

Try the tips here: http://sg.theasianparent.com/sleep_baby_sleep/ - Baby's sleeping patterns do change every so often, but try to see as well if any external factors have changed in your routine. In our case, we started going out more at night and when I went back to work, I'd want to play with baby more at night when I got home, so she didn't have enough time to "wind down" before bedtime. Her sleep hasn't been so well since.