Hi Catherine! There are many reasons that might lead your mother to sleep more, but it sounds like she might need something to engage her in order to stay awake. If she is able to do habitual things and drive to places she knows, she might need the stimulation of planned activities - losing the ability to initiate participation in activities is definitely a symptom of this disease. Perhaps a day program or a daily visit with a friend or family member might help. I definitely know that in the earlier stages of this journey with my Mom, she napped more - I also think that our loved one’s have to put more energy in to focus on just the daily tasks of living, which could lead to needing more sleep. Sending hugs and support!❤️

My husband just slept 3 & half hours. He will probably nap again a couple hours this evening. He still drives and grocery shops for us. If he is busy he stays awake most of the day but always naps in the evenings for at least two hours.