Dad has Lewy Bodies dementia so everything is constantly changing for us. Over the past few weeks he has been getting day and night mixed up. He has sometimes been getting up four or six times a night thinking that it is morning and not believing you when you tell him it's the middle if the night - even if you draw the curtains and show him that it's still pitch black outside. Sometimes he gets angry and refuses to go back to bed. We can't leave him alone because he has Parkinson's disease and his mobility is severely affected and he is liable to fall over and injure himself. During the day he then tries to sleep and we are constantly trying to think of ways to keep him awake! His GP has been very unhelpful and has told us there is nothing she can do to help and that we will have to contact the dementia nurse directly to seek advice. We have tried to do this - but she is always either out of the office or in a meeting. Our details are recorded and we are told we will get a call back - but we never do and have to go through it all again and again day after day. Has anyone else had experience of this type of behaviour? Is their medication that can be prescribed to help with this? Someone told me that we should be giving him Melotonin - the GP refused to prescribe this and you're not able to buy it over the counter in this country - so no joy there. Two of us are sharing the load (my sister and myself) with this - but we are both getting very tired and need something to help us through this phase. Any suggestions will be gratefully appreciated. Thank you.