My 6 week old is very inconsistent with the amount of milk she takes in a feed

[Herbert73]

Hi, my daughter was drinking 120ml in each feed every 3-4 hours and having 4 periods of alert time a day lasting 1.5 to 2 hours. Over the past 3 days she has been sleeping more and only having 2 alert periods of about two hours and rarely drinks her full bottle. She has been having between 60-90 mls a time. She appears to be fine in herself happy and bright when awake and plenty of wet and dirty nappies. I have changed her milk for the night feeds but she doesn't appear to be affected by that. She falls asleep on the bottle. Any help would be great

[Lolly]

What milk do you have her on and what have you changed her night milk too? Have you tried a faster flow teat at all? Is she having good naps during the day as tiredness can sometimes make them drink less.

Laura