My mom suffered a stroke and then received a diagnosis of slowly progressive dementia this year. My...(our) issue at present is mobility. She has all but given up walking or moving but has no trouble getting out of bed in the middle of the night and sleeping on the padded mat next to her bed. I am puzzled because she seems to be immobile but has no trouble placing herself on the floor. I have a Hoyer lift for her so I can get her up but as soon as i leave the room she is back on the floor. I hope some one in this group might shed some light on what I believe is puzzling behavior.