Sometimes I can drink my midnight bottle at the perfect pace that I fall fast asleep after I suck the last drop out of it. It is a very smooth transition back to sleep. It is more impressive that I can sleep so peacefully after the effort and gusto I have when drinking my bottle. The packaging said that it should take a baby 10 minutes to drink 200ml (6.8 oz) with the particular nipple I’m using. I usually finish in just over 3 minutes and sometimes just under.