The amount of sleep needed can depend on sleep quality, age, pregnancy, and level of sleep deprivation. Sleep deprivation is linked to various adverse health outcomes, including cognitive impairments, mood disturbances, and increased risk for chronic conditions. Sleep deprivation is when you don’t get enough or good-quality sleep, which can interfere with your health and well-being. Learn about the different types, stages and causes of sleep deprivation, how it affects your body and mind, and how to treat it. Getting enough quality sleep at the right times can help protect your mental health, physical health, quality of life, and safety. Learn how to figure out if you're getting enough sleep, what symptoms children show, and sleep and your health in this topic. Sleep deprivation doesn't just make you tired — it can raise blood pressure, disrupt hormones, impair mental health, and weaken your immune system. Learn the risks and symptoms of not getting enough sleep.