Have I lost ALL my sense?

Apparently, when my husband is out of town and my children are with their grandparents, I lose the ability to tell time. And the awareness that I am tired. And any amount of level-headedness that I've ever possessed (which was never much to begin with.) For the second weekend in a row, I've stayed up all night reading and writing instead of sleeping. My brain is all fuzzy, my vision is shimmering around the edges, but I finished The Big Bad Wolf Tells All by midnight and Cinderella Rules in the gray hours of pre-dawn, dammit. Nothing beats a night spent alone with romance novels and unprecedented amounts of diet soda. Sleep is for the weak.