An empty bed in darkness

Is it typical for people with dementia to sleep a lot during the day?

People with dementia, especially those in the later stages, can often spend a lot of time sleeping. This can sometimes be worrying for carers, friends and family. Find out why a person with dementia might sleep more than an average person of their age.

It is quite common for a person with dementia, especially in the later stages, to spend a lot of their time sleeping – both during the day and night. This can sometimes be distressing for the person’s family and friends, as they may worry that something is wrong. 

Sleeping more and more is a common feature of later-stage dementia. As the disease progresses, the damage to a person’s brain becomes more extensive and they gradually become weaker and frailer over time.

As a result, a person with dementia may find it quite exhausting to do relatively simple tasks like communicating, eating or trying to understand what is going on around them. This can make the person sleep more during the day as their symptoms become more severe. 

Some medications may contribute to sleepiness. These include some antipsychotics, antidepressants, antihistamines and of course sleeping pills.

Sleeping disorders unrelated to dementia, such as having breathing that occasionally stops during sleep (known as ‘apnoea’), can also contribute to sleeping for longer. 

What should I do if a person with dementia is sleeping a lot? 

If the person is in the later stages of dementia and they have gradually started sleeping more and more, it is likely to be due to the dementia progressing.  

However, if the excessive sleeping has started more suddenly, or the person doesn’t seem well in other ways, it may have another cause.  

If this is the case you should speak to the GP, to rule out any infections or conditions that could be affecting the person's sleep. It may also be worth asking for a medication review with the GP or speaking to a pharmacist as medication can cause a range of side effects. 

Providing the person doesn’t appear to be uncomfortable or distressed, then sleeping more during the day isn’t normally a reason to be worried.

However, if a person is lying down in bed and asleep for most of the time they will need to be looked after to make sure they don’t develop any physical health problems. This sort of care is normally done by a health or social care professional in a care home or hospice. If the person is still living at home though, then it’s important to get advice from your GP or nurse on how best to do this.

Why does dementia affect sleep? 

Problems with sleep are very common for people with dementia. They can include: 

  • sleeping during the day and being awake and restless during the night 
  • becoming disorientated in the dark if they wake up to use the toilet 
  • waking up more often and staying awake longer during the night 
  • getting up in the early hours and thinking it’s day time or time to go to work (disorientation in time) 
  • not being able to tell the difference between night and day. 

Nobody completely understands why dementia affects sleeping patterns. For some people, it may be that their internal ‘biological clock’, which judges what time it is, becomes damaged so the person starts to feel sleepy at the wrong time of day.

There are also other parts of the brain which control whether or not we stay awake, and these may also not work properly if they become damaged.  

Sometimes a person with dementia might completely reverse their normal sleep pattern, staying up all night and then sleeping all day. 

Sleep and dementia

It's common for people with dementia, especially in the later stages, to spend a lot of their time sleeping

Does quality of sleep matter for people with dementia? 

The quality of a person's sleep gradually deteriorates as they get older. They tend to get less deep or ‘slow-wave’ sleep, which helps to keep the brain healthy and refreshed. 

Even though a person with dementia may end up sleeping more than a typical person of their age – even as much as 14–15 hours a day – it is unlikely to all be good quality sleep. 

Sleeping a lot can also be influenced by people’s sleeping patterns before they had dementia, as some people need more sleep than others. 

Sleep for people who have dementia with Lewy bodies and Parkinson’s disease 

The type of dementia you have can affect your sleep.

People who have dementia caused by Lewy body disease, such as Parkinsons’ disease (PD) or dementia with Lewy bodies (DLB) are often sleepy by day but have very restless and disturbed nights. They can suffer from confusion, nightmares and hallucinations. Insomnia, sleep apnoea (breathing difficulties) and restless legs are common symptoms. 

A person affected with these types of dementia may often unknowingly ‘act’ out their dreams by shouting and moving around in bed.

They can even cause injury to themselves and/or their sleeping partner. This is called rapid eye movement (REM) sleep behaviour disorder or RBD, and tends to happen from the earliest stages of the disease onwards.

This can be exhausting and often leaves the person feeling like they haven’t slept at all, so they are very tired and sleepy during the day.

It can be hard to stay awake during the day after a poor night’s sleep but, if possible, it’s best to try to limit sleep during the day to small bursts or ‘catnaps’. Otherwise the person’s body clock can become very confused and this makes sleeping well during the night even harder.

Read more about sleep and dementia

Learn more about how dementia can affect sleeping patterns, as well as our tips for healthy sleep.

Sleep and dementia

This article was first published in 2019. It was most recently updated on 29 January 2024.

755 comments

My spouse of 54 years has dementia. he now is bedridden and sleeps night and day. I never go out for fear of soomething happening to him while I'm out doing errands. Is there anyway of telling how long he or others will live?

Hi there Christinie,
Thank you for your comment. We are very sorry to hear about your husband's condition. Please know that we're here for you, and there are people you can talk to about how you're feeling during this difficult time.
You can directly talk to other people living with or affected by dementia within our online community, Talking Point: https://forum.alzheimers.org.uk/ This is open 24/7.
For information, advice and support, you can also call our support line and speak with a dementia adviser on 0333 150 3456 - you can find more details and opening hours here: https://www.alzheimers.org.uk/get-support/dementia-connect-support-line
In the meantime, you may find this information about the later stages of dementia useful: https://www.alzheimers.org.uk/about-dementia/symptoms-and-diagnosis/how… This explains what to expect when someone has advanced dementia, as well as the care and support that's available.
We hope this is helpful.
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Alzheimer's Society blog team

Can someone please put my mind at rest. My darling dad who's 90 has Alzheimer and is now sleeping a lot. I understand this is normal he has become very frail and now shows no interest in leaving his room not even for his meals which he enjoyed in the care home. My mother who is a very suspicious person by nature and has never even visited him in the home we chose for dad is implying the only reason he's sleeping is that the care home are drugging him. He was given some antidepressants to try to help his low mood but only for a few days as they took him off because he couldn't wake up easily but unfortunately he's still sleeping and my mother is insisting they are lying and he's still on them to keep him quiet. The care home is lovely and Dad's been so well cared for by the staff and has bonded well with them and we are confident and see that all his needs are being met but she still insists his sleeping is due to him being drugged so I wondered if you have any writings I can show her on the sleeping pattern of people with alzheimers please. Thanks

Tina, I'm so sorry. It's such a horrible disease and then to have to deal with your mom thinking that is just awful. It makes my heart sad.

my mother i law has stage 5 alzheimer’s. She sleeps all night and during the day she’s likes to take naps throughout the day. I think this is normal at her stage but my husband (her son) insists she gets out of bed and not take naps. he thinks it’s bad for her. i know if i wanted to sleep i’d be bothered by someone forcing me to get out of bed. I’m i wrong or is my husband doing the right thing waking her from her naps.

My mom is Going to be 88 diagnosed with dementia at 80. She lives with me and sleeps 20 hours a day . She can barely walk but still can get to the bathroom(sometimes) others I will have a mess to clean. She talks if spoken to still. Remembers things from the past but I don’t think she knows who I am. My question is. At this point how much longer will she live? I am drained. Can it be several more years or from your experience is it close. I just don’t know if I can continue not having a life for years to come.

My grandma also has dementia and is 86 years of age. She lives with me, my husband and 3 year old son. She has recently entered the late stage and it has been exhausting for me as her primary caregiver. I often wonder if I’m going to walk in and find her deceased. My husband and I have altered our lives to take care of her which has taken a toll on our relationship. I completely understand your thoughts of just wanting it to be over because you’re so drained.

I am in exactly the same situation as you are !!
Im exhausted as well... when will it all end. ??
Well.. I think we both know that is impossible to predict. We are both doing our very best and must feel good that we are making our mother comfortable in the last few years of her life... its hard I know and depression is close as life if no longer lived by our own schedule... but you are doing such a good thing... the future is a very tough thing to behold or comprehend!! So don't look at it... just look at two week blocks and survive... the best you know how too...

I've been taking care of my 86 yr old mother for 2yrs now. She has dementia, heart failure, high blood pressure, diabetes, macular degeneration and arterial arteritis. I quick my job to stay home with her. She's been bedridden for the last year because she can't support her weight on her knees which she had replaced 6 yrs ago. I'm in a deep depression right now. I love my mom but my whole life revovles around her. I cannot do one single thing for myself until her needs are met first. I feel like I have a 200 lb. baby. UGH!

Dear relatives or caregivers: Has any of your patients you’ve taken care have or had previous seizures with either Dementia or Alzheimer’s ?

Hi Carrie,

Thanks for your comment.

We have this page on the link between dementia and seizures, in case it's helpful:
https://www.alzheimers.org.uk/blog/what-link-between-seizures-and-demen…

Thanks,

Alzheimer's Society blog team

Your post is old and I’ve just found this blog but I wanted to respond with...SAME! I’ve recently realized I’ve been the family caregiver and housekeeper all my life, (while working f/t and raising children) at the expense of my own life. When I’m relieved of this current situation I don’t ever want to do it again. I can’t! All the best to you.

My wife has, what we believe, is whole brain radiation induced dementia and is sleeping nearly 22 hours a day, somewhat awake during daylight hours and eating very little now. She is basically bedridden and has a hospice hospital bed in our home. Her radiation was in 2016 and now it is May, 2020. The progression was fairly slow until the last 8 weeks or so. What should I be looking for next? The hospice nurse has said that less than six months but I wonder if it will be much sooner. Thank you..

Hi Kevin, thanks for getting in touch.
We're so sorry to hear about your wife's condition. This must be such a difficult time for you, but please know that we're here for you and there are lots of people you can talk to about how you're feeling.
If you'd like to talk to other people living with or affected by dementia, our online community Talking Point is available 24/7: https://forum.alzheimers.org.uk/
For information, advice and support, you can also call our support line and speak with a dementia adviser on 0333 150 3456 - you can find more details and opening hours here: https://www.alzheimers.org.uk/get-support/dementia-connect-support-line
In the meantime, you may find this information about the later stages of dementia useful: https://www.alzheimers.org.uk/about-dementia/symptoms-and-diagnosis/how… This explains what to expect when someone has advanced dementia, as well as the care and support that's available.
Wishing you all the best at this difficult time.

Very helpful information.

Coping with my second husband with dementia. My late husband John had mini strokes from the minute bubbles from the heart/lung machine he had when he had open heart surgery. A problem called "pump head", generally not mentioned by doctors. My current husband Don had a left thalamic stroke 5 years ago caused by arterial plaque which couldb't be removed. He still has aphasia, perseverating, cognative and behavioral problems, sleeps mostly during daytime. Jekyll-Hyde behavior, sometimes sweet and almost normal, sometimes angry and nasty. He is 82, I'm 68. I get tired and discouraged, sometimes angry. But I try to remind myself that he won't get better, but I can change how I see him and how I cope.
That he's I'll and that this is beyond his control, and I should not take his bad behavior personally. In addition to the stroke and dementia, he is high functioning aspergers, which has problem behaviors of it's own. My late husband died in a nursing home which was short-handed so I"m trying to keep him home. I'm grateful for a chance to talk with others facing the same things

My wife of 51 years now aged 77 has dementia and now sleeps until mid morning and has very dizzy spells when she gets up. Gets better after shower and breakfast but it is an increasing problem. The doctors haven’t been particularly helpful in advising me. I am glad that others are experiencing the same problem. It has been depressing me lot.

Mum can have period of cat naps of 10-20 minutes then awake for an hour, this can last 24, 36 or even 48 hours. So she's awake all night and all day. Is this normal? What can be done, no medication seems to help.

Hi. Thank you for sharing.
My wife who is 55 has Alzheimer's. She is unable to do anything for herself. She sleeps 14½ hours in the evening.
Until recently she was extremely agitated during the time that she was up. But this last week she has started to fall asleep more in the daytime as well. This can happen even whilst eating a meal, I will add that she has a very good appetite, and eats all that is fed to her. This means that of the 10 hours that she is up she is now probably sleepy 3-4 of those as well.
At first it was extremely worrying, but I guess we thought at least while sleeping she was not hallucinating and agitated. It has not affected the evening sleep at all....
Stay safe all of you 😭💙

Thankyou so much.. this helped alot because my grandfather suffers from dimentia and he has started to sleep alot so we were really worried.. definitely going to consult our GP now for more guidance.

We’re having sleep issues with my mom right now. I’m trying to figure out how to get her to sleep at night again. She’s sleeping all day but awake all night and I worry it increases her disorientation :( she’s relatively young at 73 and has been facing dementia for 10 years now. She’s on peg tube feeding which I carefully use and clean. Are there any suggestions? We do not want to ever put her on heavy meds like antipsychotics. I don’t believe she needs them. She’s pretty manageable.

Hello Becca,
Thank you for getting in touch. We're very sorry to hear about your mom's sleep problems. This is a really common topic on Talking Point, our online community for people affected by dementia. You might be interested in the most recent discussion about erratic sleep patterns: https://forum.alzheimers.org.uk/threads/erratic-sleep-pattern.119986/
In addition, here are some other posts (which are a few years older) that may also be relevant to your situation and could prove to be useful:
https://forum.alzheimers.org.uk/threads/my-mother-is-sleeping-a-lot-dur…
https://forum.alzheimers.org.uk/threads/excessive-sleeping.105504/
We hope this is helpful, Becca.
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Alzheimer's Society blog team

This was an excellent article and comments from others. I have had to give up work abroad to come back to look after my 91 year old parents. My dad has declined very rapidly and now sleeps 18-20 hours every day and night - he only wakes up to eat. My mum is ok mentally but physically very frail. They are both deaf which adds to my frustration. Life is very very hard and its having a huge impact on me, particularly now with "lockdown" MY life has stopped for the last 3 years - I have no escape or respite. These comments have helped in that I now understand things better.

My Mother is 75, and she has finally been diagnosed with dimentia. I say finally because for hears she has been a different person - aggressive physically and verbally, mean and distant. Now that we know what’s going on, she has been sleeping a lot, no motivation for activity, and drinking soda quite a bit. It’s definitely been difficult to see my mom grow down hill so fast. She gets up in the morning to her usual chair and immediately falls asleep and continues to sleep most of the day. Sad how much she’s missing out on. It’s like I’ve already lost her the first time when her personality changed, now I’ve had to deal with losing her again to sleep. So many events in my life that I need her to be around and active to be a part of but I don’t think that will happen.

My mum is 85 and has dementia, and has been bedridden for about 5 years now. She lives with me, I'm her carer. Until 2 days ago she was awake quite a bit, eating, and using the commode next to her bed which she could use on her own (with difficulty). Then she slipped as she tried to get into bed, and ended up sitting on the floor. We lifted her up, she said she didn't hurt, just a bit shaken, and she went to sleep, I gave her paracetamol as she's had toothache as well. Since then she hasn't been able to get in and out of bed, so I've had to put pads in her bed, she hasn't had a bowel movement, and she is sleeping just about 23 hours a day, and not hardly eating (which is very unusual). I'm really worried now, but am thinking as she's had dementia for a few years, is this the last stages? She has no quality of life, and doesn't know who I am most of the time anyway. I haven't liked to contact her GP yet due to the current virus, but am not sure what to do. To be really brutally honest, it's been so nice to have a break, and some peace, after 15 years of caring, first for my dad and now my mum. Any advice please? Thank you

Hi Amelia,
Thanks for getting in touch. You may find it helpful to speak with one of dementia advisers to discuss the current situation with your mum. Our advisers can provide you with information, advice and support. Please call our Dementia Connect support line on 0333 150 3456. (More information on opening times: https://www.alzheimers.org.uk/get-support/dementia-connect-support-line)
Wishing you all the best, Amelia.
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Alzheimer's Society blog team

Amelia please do contact your GP they need to be involved ..my mum 91 has rapidly deteriorated after a fall 5 weeks ago and is now sleeping more and her GP has been calling round as my sister and I need his advice as we cannot continue 24 hour care indefinitely. Please do not feel guilty if she has to go into a care home we are seriously thinking of this for our Mum as she deserves the professional help that they offer..and you like us have to have some freedom and opportunity to continue your life..Dementia is indeed the most cruellest of diseases..

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