Baby sleeping too much??

Tarrahlynn
My 12 wk old baby took a 3 hour nap earlier then woke up drank 2oz of milk and immediately fell asleep again and is currently sleeping for 1 hour and 21 minutes.. She hasn't napped this much and for such long stretches since she was just a new born. Is this normal?? These past couple months she usually only naps for only 30-45 mins.