Yes, alcoholics do sleep, but excessive alcohol consumption can affect the quality and quantity of sleep. Alcohol can disrupt the normal sleep cycle and cause insomnia, frequent waking during the night, and daytime drowsiness. Over time, this can lead to chronic sleep problems, which can have a negative impact on physical and mental health. Additionally, alcohol withdrawal can also cause sleep disturbances, such as insomnia and vivid dreams. It is important for alcoholics to seek treatment to address both the physical and psychological factors contributing to their sleep problems.