Woke up cold, tired

I think I am still cold and tired. Man! I set the thermostat low to cut energy costs and once out of my warm bed ... yikes, I think that stirred some of the weariness out of me. I then put on layers to get warm while the house was warming and ... got comfy and tired again. Coffee put only a minor dent in my alertness. I've got to work, so sleep is out of the question.