I am so sorry you must go through this. I lost my Mom in October after just less than a year's battle with colon cancer and now my Dad was diagnosed with cancer in February (Mom was only 63, Dad is 65!).
I googled hospice and found extremely helpful information. Stuff you never want to read and experience but is so important to know what is going on.
My Mom was bedridded for almost two months before she passed. First food stopped, then drinking. We never forced, but always offered. We used a soft sponge to keep her moth wet and chapstick as well for her lips. She began to sleep more and then talking pretty much stopped. It was extremely painful and hurtful to watch. She had delusions of people not there as well as family members who had passed. We had hospice in and medications helped Mom not be aware so much. I spent as much time as possible with her, sleeping there almost every night and lying in bed with her during the day. Her feet became cold, which is the first sign that bloodflow is not working. Her output became very little as well. She was cathed since she was bedridden. I am happy she did not die alone, Dad was with her. I happy she was free of pain and in heaven. I miss her more each day and wish NO ONE ever had to experience this. I still have nightmares, but I know my place was to be there for Mom. Her brother couldn't handle it and did not come and see her... I get angry because it is certainly harder on the patient and important for them to have the love of family and friends. Again I am sorry you must experience this. Try to be strong and although your Mom know you are there and love, her keep telling her! I will pray for you and your Mom and take care!