You can wait 10-15 minutes before feeding and that is fine. That is, if your baby will wait. A lot of babies are very hungry and ready for food when they wake up--that is how my Brayden (now 2.5) was. Anne Marie also said,

"I have shared with mom's as their baby is on a good routine, got this nursing thing down, milk supply is great etc. and that usually is all in place between 4 - 6 weeks, that it's probably a good idea to have a short space of time between getting baby up and sitting down to feed, so that baby isn't 'conditioned' to think, as soon as I wake up I need to eat."

- from Plowmanators of Chronicles of a Babywise Mom