I'll make this short and sweet. If you are having trouble sleeping, there is something that will more than likely help. First, close your eyes. Now, start breathing deeply. This will help quiet your mind and help you relax. Next, pretend you are in a safe place away from distractions like a womb or a cocoon or anything that makes you feel comfortable. For a claustrophobic person, it would more likely be an open space instead. Continue for about 2-5 minutes. With your mind quieted and your body relaxed, it should be easier to go to sleep. This is also a good way to deal with a depressed mood or an anxiety (or panic) attack.