I don't know if such people exist but ...
my dad has mild cognitive disorder (not dementia but severe memory loss and some confusion) and he has other illnesses too.
My mum gets out roughly once every 2 weeks for between 1-2 hours (WI and coffee with a friend) but I know she'd like to leave him a bit more but feels he's unsafe on his own. He refuses to have an personal alarm. he doesn't need personal care for that time , just someone to make sure he doesn't fall over or uses the hob etc and leaves it on.
Is there any way she could get someone to come and sit with him? He's not very sociable and of course the person would have to be 100% trustworthy which is a huge issue for them.
Are there any charities who do this or is it something we could sort privately?