my 83 yo mother is in a care home. She has AD and vascular dementia. Six weeks ago she stopped sleeping. She now sleeps for less than two hours in 24 and seldom for longer than 45minutes in one go. The GP has tried different sedatives and sleeping tablets but nothing makes any difference. She is restless and sometime agitated too, pacing all the time to the extent that her legs are constantly swollen. No one seems to know what’s happening: none of the staff have seen this before and even the CMH and specialist dementia team are stumped. Has anyone else out there witnessed this? Can anyone help?