As title says really... For months, Billie has been sleeping through until 6.30 am. We always dream feed her at 11pm also. This last week she has been almost finishing her bottle at 11pm... then waking up hungry at 2-3am where she'll almost finish another bottle... and the same at 5.30am. She has 3 meals a day and eats til she's full. Lack of sleep is starting to get to me Could it be a growth spurt?