The loss of an hour

I had difficulty going to sleep last night.  I did not know the loss of an hour would affect me so much.  At 12:30 last night I took an ambien.  The result, well, I woke up and was groggy as hell.  So, called my boss, and told her I would be an hour late.  I am very lucky I have a flexible schedule.  Had a great day at work today.    Full of energy, and got tons of work done.