Just over 6 months but Ruby is exactly the same, she has never slept through, not even till like the early hours. She gets fed once during the night but not without trying umpteen times to give her her dummy. She'll go to sleep about 8.30pm but without fail every single night between 11pm and 12am she wakes up, sometimes takes her dummy and goes back to sleep for an hour before needing fed other times I fight with her for an hour before giving in and feeding her, but then she doesn't settle properly after a feed, she'll be up grisling like Charlie constantly through the night.
She gets 4 7oz bottles plus 3 decent sized meals a day, but like Charlie she was a nightmare with the colic and wind so maybe her tummy still bothers her slightly, but then she'll sleep for a good 3 hours to start with.
So really Coz I can't help you cause I'm in the same boat as you. xx