This week the FDA took a look at sleeping pills and their affect on our system the next day. The issues is more an an issue with women because our metabolism is slower to process medications and so the effects last longer.
Consider that we also put off when we go to bed and take our sleep pills and shorten our sleep and you can see how medication may have side effects. If you read the medications it suggests that you have at least 8 hours of uninterrupted sleep. Many people take their medications around 11pm because that is there bedtime and then get up at 6-7am thinking that is enough time in bed. The problem is that the medication is still in your system and makes you fatigued.
Driving while fatigued has been shown to be as dangerous as driving while intoxicated. With this issue and the number of people taking medication it makes the morning drive time more dangerous.
If you are going to use prescription sleep aids consider using them carefully. Make sure you take them early enough. Taking them at 9-10pm may be a better time. Consider using sleep hygiene to assist you in going to sleep earlier.