S.R.
ONe thing that I've read is that you should try to get your baby to sleep, then eat, then have awake time. That may help get your baby on a schedule (used loosely) that will help him sleep without eating first. Also, my son has ALWAYS been a light sleeper and we had him next to our bed until he was 7 months. So when we would roll over, make ANY noise, etc. he would wake up--I started putting a fan in the room. I face it away from him but the sound helped drown out any other noise. He slept much better. You could try a air purifier, a humidifier (though messy), or a sound machine. The sounds are also supposed to be soothing, so that in itself may help!?!?