Hi, my dd2 has always been sleepy and I have been attempting to wake her every 3 hrs in the day to feed and not let her go more than 5-6 hrs at night as she is still under 8lb. She seems to feed much better though, i.e. not keep falling asleep if I leave her for 4 hrs and some days, she will demand more frequent feeds and have lots of wakeful periods when of course I will feed her. She initially lost 10oz off birthweight but has since gained 7-9oz each week. Should I still be feeding her more than 4 hourly like all 'the books' tell me?