My care receiver (mum) has been sleeping 20 hrs a day & eating/drinking very little for 5 days. Today she is refusing anything. What to do?

4 years is not a long time to have dementia symptoms, but it progresses differently for each person. The symptoms you mention are typically end of life symptoms. Hospice or palliative care can be of great help in evaluating your mum and give you some peace of mind.

Call her doctor. If not on Hospice, this maybe the time to do it. They will evaluate Mom.

Do you have a doctor you can call? She may be ready for a referral to hospice.

At the end of life, my loved one slept a lot and became disinterested in food and drink.

We called in hospice. They told us how to keep her comfortable until she passed away. They were very helpful.