Being a slave is a particularly tiring job so it is no surprise that you might fall asleep at certain times. However, it is not a very wise thing to do when your mistress is expecting you to serve her. In fact, it is the ultimate chance for her to serve you a punishment that you will remember for a long time. This time the threat of the whip doesn't really seem to wake our little slave up so it might be time for some suitable measures. Some whipping with a rubber flogger for instance. That will surely wake her up!