has anyone got experiences with this they could share? Ds is six weeks old and sleeps very sporadically. He's a big baby (14lbs or so I think) and doesn't go for more than two hours between feeds at night. As he is also very sicky he'll often end up throwing up what looks like most of his feed and then start afresh - so all in all we'll be up for anything from one to 2.5 hours. I've had enough!! I really really need some sleep (can't get any during the day as dds can't just be left to their own devices at 2 & 4 years old) and ds's sleeping habits seem to be getting worse if anything. I've been tempted to try him with a bottle of formula at 11pm or so to see if it'll make him go for a bit longer before he wants to eat again. But does it actually work?