They have difficulty falling asleep, or staying asleep, unrefreshed sleep as well as daytime sleepiness. Depression is at a higher risk in people who suffer from both onset and sleep maintenance insomnia.Sometimes these symptoms can overlap and a misdiagnosis is then common, as a depressed mood could be sign of insomnia, OSA or narcolepsy. RLS is a condition that causes a discomfort in the legs which disturbs sleep patterns. Children who suffer from depression, caused by insomnia and hypersomnia have a higher risk for long lasting depression. They also suffer from weight loss, impaired movement, and an inability to feel happy.