Smoking cigarettes or using other tobacco products like cigars can affect your sleep in several ways. Smoking and sleep disturbance often go hand in hand with each other. All stimulants interfere with the body’s ability to fall and stay asleep.
It all has to do with the active ingredient, nicotine.
First, depending on your level of use and dependence, your desire for additional nicotine during your sleep may cause you to awaken and this may lead to insomnia. Nicotine itself is a stimulant and the use of it too close to bedtime may also make it difficult for you to fall asleep. […]