If Sleeping Pills Are Depressant and Cafeine Is a Stimulant?

Question by jsell: if sleeping pills are depressant and cafeine is a stimulant?
I need some help on my bio homwork, im a little bit stumped with this :

if sleeping pills are depressant and cafeine is a stimulant, explain how some people can become addicted to both of these drugs at the same time.

Best answer:

Answer by Trey
They could be addicted to sleeping pills at night time and caffeine in the morning, or they could just be addicted to the chemicals and not the feeling that they produce.

Answer by Alisha U
Some people might try to regulate their bodies too much like taking pills to sleep then different pills in the morning to wake up. when any drug is used consistently immunity, the addiction is built up, so a person may feel the need to take both kinds of pills/drugs despite whether they feel effects or not.