DS is now almost 16 weeks old and has just started sleeping through the night (hooray!) He'll go from about 10.30pm to 7am happily. I took him to be weighed yesterday and the HV said he's dropped off the 75th centile line (he's now between 75 and 50) and it's probably because my milk supply is suffering due to not night feeding. However, he's only been doing this for about a week so I find it unlikely this is what's made the difference. She said I need to set an alarm for the middle of the night to express. Is anyone else doing this? I know the HV probably knows best but to me it seems a bit unnatural - surely DS and my body should be working in sync?