hello
@Patricia1966
a warm welcome to TP from me too
my condolences on the death of your brother-in-law; such a shock and so much sadness for your family
it's lovely of your husband to want to help with your mum, but right now he needs to stay away - and actually maybe you need to do that as much as possible too
has your mum been checked for a UTI or chest infection - any infection can cause havoc to the system of a person with dementia (PWD) increasing confusion and anxiety - my dad now takes some time to recover from a cold as it makes him so tired, so it may well be that your mum feels that way
and sadly many a parent with dementia seems to focus on one child to be their desired carer not wanting to accept a professional carer, which puts a massive strain on that person ie you - it is time to override your mum's wishes and concentrate on providing for her needs - not being rotten, but if she is in bed, as you say, she's not wandering and she can hardly block any home carer from entering the house - think of having a cleaner and ordering groceries etc online to be delivered; anything to take some of the pressure from YOU
as jaymor says, contact your Local Authority Adult Services for an urgent assessment of her care needs - here you need to be brutal, tell them you HAVE to work and your key concern is looking after your husband so you are unable to provide the care your mum needs, indeed you fear you are heading for carer breakdown - let them know she is currently house and bedbound and you are worried - ask for home care visits, a sitter/befriender and, I suggest, a spell of respite because YOU NEED a break from caring and at the moment your mum needs to be monitored 24/7 - tell them you feel your mum is 'vulnerable' and 'at risk' (mention the wandering, as if she does get out of bed she may well do this again) and you believe the LA has the 'duty of care - those buzz words should get attention
as for finances - YOU should not be funding your mum's care - for care at home her house, if she owns it, is not taken into account - if she has savings over £23250 she will have to self fund her care and I'd suggest you get carers organised asap, still going ahead with contacting the LA to flag your mum up as vulnerable and not letting them know her financial situation until after the care assessment has been done - if her savings are below that figure, the LA will at least part fund her care and will broker a care agency to provide whatever care package they suggest is put in place
you say your mum is receiving Attendance Allowance, that and her diagnosis may well make her eligible for a disregard of Council Tax so contact her council about this - have a look at their online info
you (or maybe your husband) could look into carer's allowance - for you this will depend on how much you earn, but you say your husband is not working
https://www.gov.uk/carers-allowance
I hope you have Powers of Attorney in place so that you can help manage your mum's affairs - if not get these asap as they will give you legal authority to support her
sorry to write an essay
keep posting - we can't make your situation go away, but we can help out with suggestions and sympathy