My 87 year old father takes an afternoon nap; waking around 4 pm.  About once a week he thinks it is morning.  Starts making coffee, gets ready to take a shower, etc.   Sometimes it takes at least 1/2 hour to convince him that it is actually evening.  What is wrong?
HiT hanks for using Chat Doctor I think, he is disoriented. That may be part of dementia. In that case, do not allow him to sleep during after noon and let her sleep at night. This would help to resolve this problem. If he is not getting sleep at night, better to give him any sleeping pill after physician consultation. Once his sleep pattern would improve, he would be alright. In case, you need further help, you can ask. Thanks