Continuous oversleeping can be an indication of underlying medical problems. It is not normal to feel tired for a prolonged period of time if you are getting at least 7 to 8 hours of sleep each night. There are many factors that can cause oversleeping, and not all are due to medical conditions. Oversleeping can result from habit and environment.
Environmental factors can cause oversleeping. Sleeping in a room that is either too hot or too cold can create restlessness throughout the night. Waking up periodically results in broken sleep. It is essential for your body to have a sound sleep without interruptions. The bed is a significant part of the environment. An uncomfortable bed can keep you tossing and turning throughout the night, decreasing the quality of your sleep.
Consuming too many drinks containing caffeine before bed can keep you from falling asleep. Caffeine is a stimulant that speeds up the body's system and inhibits the production of the natural sleep agent adenosin. Adenosin helps bring on a deep sleep.
Oversleeping is one symptom of diabetes. Insulin controls blood sugar. When blood sugar is normal, it is converted into energy in the blood cells. Fatigue occurs when the blood sugar does not effectively enter the blood cells and convert into energy.
Heart disease is another medical factor for oversleeping. The heart regulates blood flow and oxygen throughout the body. When the heart cannot pump enough blood to your organs and you cannot get enough oxygen, your body becomes weak and tired.
Stress can be a significant cause of oversleeping. When your body is under constant stress, it overproduces adrenalin. Adrenalin increases the heart rate and the blood pressure. When the heart rate is increased, it cannot achieve a normal resting state needed for deep sleep.
Sleep apnea is a major cause of oversleeping and feeling fatigued during the day. Sleep apnea is a condition in which the airway becomes blocked, causing you to stop breathing and also causing you to wake up multiple times throughout the night. Patients with sleep apnea never sleep through the night.