10 week old refusing to eat

Autum

Hello! I exclusively breastfeed my 10 week old and she normally eatevery 1.5-2hrs during the day andisstarting to go 6hrs at night. Well she slept 8 hrs last night and is refusing since 7 am. My 1st child who.i breastfeed for 2.5 yrs never did this. I am at a lost. Anyone else's baby ever do this? Any tips? Also, supply is not an issue as I am an oversupplier.