Sleeping more than 12 hours at night

Do any of your babes sleep longer than 12 hours at night? Sometimes my girl does, then she only has time for one nap during the day. I feel like she’s too young (9.5 months) to only have one nap during the day but if we give her two naps she would go to bed really late. Sometimes we try giving her the second nap but she won’t go down. I’m so happy she’s sleeping well at night but want to make sure she’s getting enough day sleep too. She gets about 13.5 hours combined between night sleep and naps, sometimes more, sometimes less.