Why Do I Feel So Groggy

I slept until noon today and I surely feel groggy still. I do not have a lot of energy right now. Even Bing seems to feel the need to be huggable and lay in my lap and feel safe. Usually Bing sleeps near by but today he seems to be very much the Bing I first met. I have homework to do and even though I do not mind having Bing Crosby on my lap, he does make it more difficult for me to get my homework done, lol. I just type everything I need to type with one hand while I am holding Bing with one arm and hand. He even slept with me all night last night. I am not in the mood to have company over today — none and going to have a day for myself.