Woman sleeps the day away

I am constantly amazed at how I can sleep a day away. I mean when I work full time I rarely get to take a nap. When I am home on vaca, I nap and then nap some more. How does vaca get so tiring? I love being on a beach somewhere in the heat and I am lulled to sleep. The worst part of my nap today as I dozed off in between pages of Twilight, my daughter said I snored. Oh well, maybe I need to practice sleeping more.