It's contagious, this tiredness. The baby is tired and won't fall asleep, which makes Momma tired, who when she reaches the point of too tired to cope, passes said baby off to Daddy, who already worked all night and was probably tired before the baby . . .
Then there's the tired, sick Little Miss who hasn't slept a whole night in her bed in so long neither parent can remember when it happened last. And Big Brother entertains himself all day, avoiding the cranky bunch, by riding his bike with friends, playing Legos, and playing video games, and wears himself out by late afternoon.
We're just so tired . . . lets all go to sleep. (Please?)