9 week old likes to comfort feed after a 'main' feed sometimes for snoozing, at bedtime etc. however gets herself furious when she's sleepily comfort feeding (nibbling I call it!) and then let down kicks in and she gets a big mouthful if milk. Are there any techniques to stop the let down when I know she is just comforting? I do try and have a muslin handy and whip it away but sometimes that doesn't help.