I work from home and stay with my mother 6 out of 7 days a week. My siblings don’t seem to understand the sacrifice I make when I only ask for one day to go home to be with my husband and son. I have POA over her and Last Will and Testament with me being willed all of her earthly assets. They don’t call to see if I need assistance during the week, if she has food or need any financial assistance. I purchase all of the extras. Diapers, bed pads and food she desires. Her SSI only goes so far. Due to bad financial decisions, my 86 year old mother still has a large mortgage. I will sell it once she passes away. She is in hospice care and is deteriorating quickly, you'd think they would step in. No support financially, emotionally, physically and spiritually. I have asked many times.
I have to ask WHY are you living with your mother when you have a husband and son in your own home?
Can she move in with you and you can sell the house now and that will provide income, once the mortgage is paid off, to pay for her needs. (as well as paying you rent)
Forget getting help from people that do not want to help.
Who cares for her when you go home? Is is possible to have that person care for her another day or two at least?
As a parent the last thing I would want my child to do is leave their spouse and child to come care for me. Would you want your son to leave his family to care for you?
Since she is declining quickly, I wouldn't worry about them. Your energy needs to be for Mom. Once she passes, you can do what needs to be done and walk away. Don't allow yourself to be angry. Energy wasted. Be aware that Caregiving can split up families. This may happen to yours. You can't change other people just you. In the end, you were there for Mom. They will need to live with their choices. And, I would never help them financially out of guilt. There is a reason Mom left you everything.