First an update. She finally arose at 6pm yesterday then, despite my advice to go to the bathroom where I can supervise her washing (I have to instruct her at every stage, wet the flannel, hold it out for me to put the special liquid soap on (otherwise it will be all over along with the following cream which she almost blocked the bidet with before), instruct her how to use it, rinse the flannel well and then rinse herself, dry herself and hold out her hand for me to put a blob of the special cream on), she decided to get dressed in a warm woollen jacket and a voluminous black satin skirt. So sad that all that had to come off again for the washing but afterwards I helped her back into the clothes she had chosen. She ate part of a small chicken haunch at dinner, I’ll mix the leavings in with our dinner tonight, and a small sweet tart for pudding using a Fortimel drink as custard.
One good thing though, she seems to have completely forgotten about smoking, no more sitting with unlit cigarettes in her mouth while flicking a lighter. The last packet I gave her at her request was on September the 5th.
Of the other points raised by several of you, I will check with the doctor soon about the possibility of infection, but I think she would have thought of that herself if she thought it applied here.
I have looked at the Alzheimer Society website and while it may be useful I think it will be interaction with fellow carers and at the moment I seem to be finding enough good people on here who know what they are talking about. 
The mixture of confusion and awareness is frequent. Towards bedtime last night (later because of her 36 hour ‘sleep’) I urged her to make a move. She said ‘where am I going?’, I replied ‘to bed, it is time for bed’, she said plaintively ‘but where is it, I don’t know the way?’ Heartbreaking.
@Teapot I recognise and try to keep to those points, though she has had no sense of smell for decades (blames it on the first husband’s fists). I feel guilty when I can’t understand what she is trying to say, partly, in common with me, an age thing, she can’t find the words, but then when she does they are very unclear. Decisions she really struggles with, any question as to choice of what to have for dinner for instance produces an agonisingly long period of doubt and confusion. Walking is slow and shuffling, but we can laugh about it, while leading her gently by the hand to bed last night I was forced to adopt the same shuffling gait, which caused her to burst into a fit of the giggles at how silly I looked. 
I presume by drinking you mean alcohol. She is a recovering alcoholic but been dry for around 15 years, but just to be sure, there is to her knowledge no alcohol in the house (I store gifts from grateful French adopters of dogs I have delivered) and I don’t drink at all here. Normally her liquid intake is coffee, her first binge addiction after alcoholic treatment, lemonade and water.
I forgot to answer your question about the loo, and lack of visits there, she wears pads and, good though they are, I fear that they encourage dependence and elimination of the necessity to go.
I’ll wake her soon and see if I can get her up, and back on track to a normal daily routine, that 36 hour hiatus was no good for either of us.



It has taken an hour and a half before and the same thing in reverse at night. I gave way to anger last night, she wasn’t frightened, just open mouthed in non comprehension. I know it isn’t her fault, and said so once I settled her and apologised. I had asked her to go to the bathroom and undress on her way there. Half an hour later (I know she is very slow so this is realistic) I went through to see her sitting fully clothed at the kitchen table. I saw red and had to leave the room after getting another promise from her to get to her feet and undress. 5 minutes later I went back to find her in exactly the same position, I held both her hands and gently but forcefully brought her to her feet then undressed her completely before doing our ‘choo-choo train shuffle’ to the bathroom, that’s me shuffling backwards holding her hands. A good memory for where everything is, is essential. 
You need to do 5 laps tomorrow to catch up