Will Medicare pay for diapers, wipes, gloves, or chucks if is bed bound at home? She gets 24 hr care in home.

Hospice will cover all that.
If she is a Veteran the VA will provide supplies.

Only if she is under hospice care will they cover all that 100%. You may want to look into that since she is bedridden. Hospice will cover the hospital bed, and any other needed equipment, all supplies needed and any medications as well, all covered 100% under Medicare. A nurse will come once a week to start, to check on her, and they will send aides several days a week to bathe her.
My husband was completely bedridden and under hospice care the last 22 months of his life.
You will still need to provide the 24/7 care, as 99.9% of her care will still fall on you. Best wishes.