This condition can be a symptom of serious medical conditions. People with hypersomnia suffer from extreme sleepiness during the day, and unusually long periods of sleep during the night. Sleep apnea is when breathing stops and starts while you sleep. Other causes of oversleeping . The risks of sleeping too much and conditions linked to oversleeping include: Heart disease: Although researchers haven’t been able to pinpoint the reason for it, there is a strong correlation between oversleeping and the prevalence of heart disease. Read on and discover what oversleeping is and how to treat it. However, a range of factors can cause excessive sleepiness. Whether or not long sleep is the cause or the effect is often not immediately discernible with the data that look at large groups of people and self-reported habits, however. Yes, oversleeping can cause headaches. Hypersomnia is commonly known as oversleeping. Medical conditions. People having this issue always need 10-12 hours of sleep to feel … In olden times doctors would recommend the people suffering from back pain to rest. Causes of oversleeping. Some may not be cause for concern and represent temporary sleep behavior alterations, others are more serious. The following sleep disorders and medical conditions can cause oversleeping. It's not always clear why but research suggests that it mostly has to do with interruptions in your natural sleep cycle. Is oversleeping getting in the way of your day? Does oversleeping itself harm health, or do certain illnesses cause oversleeping? Oversleeping Can Cause Back Pain (3,4): If you keep lying especially in any uncomfortable position it can cause muscle stiffness and pain in the back. Causes of Oversleeping. Several factors could explain your need to oversleep. Written by: Phil Andrew • Last update: October 26, 2019 . A bad night's sleep can leave you feeling pretty tired the next day. If you are already suffering from back pain oversleeping might exacerbate the pain. Oversleeping is known as hypersomnia or long sleeping. Common sleep disorders that lead to oversleeping include hypersomnia, sleep apnea, and narcolepsy. Put a string of those together and nagging fatigue starts to set in.Getting good sleep, in the right amount, can make a big difference in how you feel. Sleep Disorder. Causes of Excessive Sleep and Fatigue. Oversleeping – Risks And Causes. Potential Causes of Oversleeping. As we mentioned above, several factors may cause excess tiredness. What are the causes of oversleeping? Substance use disorders. WebMD explains what can happen -- the physical side effects -- of getting too much sleep. Drug use and alcohol use can lead to disrupted circadian sleep-wake rhythms, declines in sleep quality, and can bring on a pattern of oversleeping and excessive daytime tiredness. “Oversleeping can occur for a number of reasons, such as depression, anxiety or, in more severe cases, a sleep condition such as sleep apnea," says Dr Ramlakhan, sleep expert at Silentnight. Another factor that could cause oversleeping in a depressed individual is an interruption to a person’s circadian rhythm, a disruption to their body’s internal clock. Sleep disorders and underlying health conditions can both contribute to sleeping too much, in addition to other causes.