So my little one is 12 weeks. She has been doing great with feeding and sleep. We have been giving her 5.25 ounces every three hours and she was sleeping for 8 hours at night. We just increased to 5.5 ounces and she went for 10 hours last night. So now I am not sure what schedule to put her on.... she ate last at 7 this morning and is now napping(9am). Should I shoot for 4 hours between bottles??