At night baby is very dopey and falls asleep whilst feeding (she is bottle fed). This leds to her waking up after a short period of time say 1 - 2 hours. During the day she will quite happily guzzle 5 oz and drop of to sleep for up 4 hours while at night its a struggle to get her to have 3 oz she literally refuses to wake up at the time, she then wakes a short time after. This pattern of feeding is leaving me and DP really sleep deprived. Any ideas how to alter this pattern of sleep and feeding? Baby is 4 weeks old btw.