It is highly recommended not to take sleeping pills together with other medicines like alcohol. Alcohol is a drug and when taken with slipping pills another form of drug, with interact with one another to cause very serious health hazards and even risk a life.
Being a depressant, alcohol just protracts the reflexes of human body. Fatigue is the final outcome after normal breath and heart beat decelerate and this can lead to louder snoring from that time when you are not drunk. Even people experience the symptom sleep apnea, a state when a person stops breathing for few seconds when he is fast asleep when he takes alcohol with sleeping pills which is very dangerous. Sleeping pills are a sort of downers and when these drugs are taken together put a lot of stress to body organs like liver which cannot handle the load to filter these drug molecules and allow it be reabsorbed and cycled in the whole body.