Apologies if this is a daft question but DS is formula fed and is 5.5 weeks old. He's eaten like a horse yesterday and today. He takes his 150ml at most feeds and sometimes likes a further top up too.
This is great as he was such a tiny thing when born but he's also gone from being awake most of the day to sleeping for most of today and I feel a bit lost! I take it growth spurts can also encourage more sleep?