researching about caffeine and sleep disorders , health and medicine homework help

I want you to be looking for1- Relationship between caffeine and sleep disorders?2- Its impact of sleep problems on adolescent health , behavior, and academic performance.Also, if you can determine age between 20 to 40 yeas.I want 10 studies (articles) around this topic caffeine and sleep disorders .These studies have to publish from 2006 to 2016 or 2000 to 2016 .