There is something uniquely miserable about being sick at night. You are exhausted, your body is begging for rest, but a stuffy nose, a raw throat, and that bone-deep achiness refuse to let you drift off. You stare at the ceiling. You flip your pillow. You count the hours until morning. And the cruel truth is, every hour of sleep you lose is an hour your immune system is not doing its best work. Most of us have been through it more than once. And most of us know that daytime
