Sleepy head?

Bradlyn
So I got my period yesterday and I've been taking a lot of naps lately. I'm not one who usually takes naps, nor have I've been this tired before on my period. On the weekends I sleep at least 8 or 9 hours, so I don't know why I'm taking these naps. Is this normal? I'm not too nervous about it, I'm just curious as to why this is. Anyone know?