Dementia is a brain disease in which a person loses memory, thinking, problem-solving skills, and other symptoms. Many people with dementia need to sleep more than when they have normal brains. Such affected people can’t get a good night’s sleep which is why they sleep more than others during day time. There are several possible reasons for this behaviour:


Pain is a common symptom of dementia. Physical problems, such as arthritis or back pain, cause the most common types. Psychological issues can also cause you to have painful experiences, such as anxiety and depression.

Pain can be difficult to deal with because it doesn’t always feel like physical discomfort—it often feels more like emotional distress.

Anxiety And Stress

Anxiety and stress are common in people with dementia, which can cause them to sleep more than usual. If you’re the caregiver of a loved one who has dementia and they seem anxious or stressed about their condition or care, make sure that you take time each day to sit down with them and reassure them that everything will be fine. This may help ease some of their apprehension, so they’re not so troubled by it when trying to fall asleep at night.

  • If possible, try talking things through with your loved one with dementia care during the day, so they feel safe enough at night and during the day.

Sensory Changes

As dementia care progresses, your loved one may have vision and hearing difficulties. They may not be able to see or hear well enough to navigate safely in their environment. This can lead them to fall frequently, which is dangerous if they do this at home or in an assisted living facility.


Depression is another common reason that people with dementia may sleep so much. It’s not just a symptom of dementia; it can also be a side effect of certain medications.

Depression can cause sleeplessness by making you feel overwhelmed or unable to cope with daily stressors like cleaning your home or paying bills on time (or at all). It also makes you feel low—all things that make you want nothing more than sleep!


Medications can cause sleepiness. Some medications have side effects that cause drowsiness, and some drugs are used to treat sleep disorders.

Taking a medication that affects your mood or energy level may affect how well you fall asleep and how much restful sleep you get.


If you’re a caregiver, it’s important to understand why your loved one sleeps so much. The best way to help them sleep better is by avoiding naps and other disruptive daily behaviours. If the sleep disturbance continues, speak with your doctor about medications that may help relieve stress or depression.