Susan - what a great sleep!

Tillie - I was told by midwives the following formula for EBM bottles - weight(in grams) x .03 - so a 3kg baby would be
3000 x .03 = 90ml

I use that as a general guide. Sometimes she wants a bit more, sometimes a bit less. I have so much EBM stored due to her time in hosp I have plenty to spare to usually put a little extra in the bottle and don't care if its not drunk (you need to throw out any not consumed after a feed). We heat it up by sitting the milk in the bottle in a bowl of boiling water for a few mins.

I reckon it's definitely worth doing if you can. We did it with DD1 too (although I would often need to express before bed and a little during the day to make enough for a feed).