Tobacco of any type contains many chemicals. One of them is the drug nicotine, which is the part of tobacco that makes it addictive, and gives smoking cigarettes a pleasurable feeling. Nicotine is a stimulant as well that increases your heart rate, increases your blood pressure, and makes you more alert and awake. Thus, if you are smoking near the time you are going to bed, then you should expect that it will be harder for you to fall asleep. However, nicotine is a fairly short lived drug that only hangs out in the blood stream for short while. Thus, it may make it harder for you to get to sleep, but shouldn't wake you up that much when you are asleep.
There are many other causes of insomnia
that you should consider. One of the most common causes of insomnia is depression and other mood disorders. This is something that you should consider if you think that have depressed lately. In the end, whatever the cause of your insomnia, you should work hard at quitting smoking. Both of these problems can be handled by your primary care physician
. I suggest that you schedule an appointment with him or her soon. Your doctor
should be able to determine what's going on. Good luck.