Janet, I'm glad to hear that you are getting some rest, even though you had to be awake 2 hours during the night. It could be worse though, my granddaughter came in to her mom and dad's bedroom at 4:00AM and said, "I don't feel good" so they let her get in bed with them and then she promptly threw up in the bed.
Nothing like changing the bed linens in the middle of the night.
Janet, you might consider having your mom put you on her checking account - i know that might be an issue with your brothers, not sure, but if she isn't able to sign the checks, at least you'd still be able to pay her bills. You don't have to have a power of attorney for her to just put you on her checking account. Do you (or someone) have her power of attorney for health care and one for finances? If not, you should do that NOW!