Dementia.. Great uncle

Oh dear oh dear, Today's not been the best, great uncle is so very confused, he's been up all night not able to sleep but not knowing its nighttime anyway, he got up in the night and tried to make himself a cuppa, only he actually made it in the kettle... Tea leaves and milk!!!! Thank god mother switches off all the plug sockets in the kitchen, he had put every ring on on the cooker...which was switched of at the socket but he'd managed to get the kettle to work by switching the socket back on!! ...needing a cuppa in the night knows no bounds!! But all day.. And I mean all day long he hasn't been quiet..he's talked or should I say gabbled all day long!! We have had ants on the floor where he's thrown cups of tea over them ( I'm sick of mopping the floor) we've had how nice it was to see the queen mother , wev had the low down on how to row a boat...but the worst was when the carer came back at lunch time ( a large girl!!) he said 'oh it's lovely to see you again....your look like a big lump of lard...I bet when you get in your car the suspensions under a bit of a strain!!... Omg...how do you get round that one?? I said something quite ridiculous about Going to Zumba classes ( the worst thing to say, considering how big the carer is), but she was very very understanding poor girl..I just don't know how to shut him up???? He's been like this since 2am this morning..he won't doze like he normally does during the day, he gets quite cross if you suggest he has a doze...it's as though he's been on some drugs..! Poor mother is knackered because she's not slept, and she's crankier than ever... I know Lewy Body dementia involves a bit of aggression but not sure if this is all down to dementia anyway?? He's colour has changed a bit since yesterday? He's a bit yellow, and his eyes are very red, prob due to lack of sleep? He's had 2 of his Amoxcillin, so that should kick in soon! But dementia...is it normal for uncontrolled gabbling???? Wits end...Mandy.xxx