If i close my eyes&lie on my bed but i don't sleep&think/worry about different issues,does my body rest? is this kind of rest helpful to my body&mind?

Sleep hygiene : Getting a good sleep relies on having a set of good practices, such as, sleeping in a dark room, cutting caffeine, reducing TV watching at late night and maintaining a fixed bed time for sleep. Some of your symptoms may come from overwork, stress at home or work, or possibly due to some sort of anxiety. Most adults need a good 7-8 hours of sleep for general wellbeing..