How to better manage end of life symptoms?

My Grandma is near the end. She's stopped eating, bed bound, extremely weak, hardly drinking, incontinence, confused, and all of that. These past few days however, she started throwing up bile. I try to keep her clean the best I can, but it's getting hard to keep up with the laundry. I try to keep a sheet under her, but she keeps pulling it out, and then you have bile and urine all over her bed, on the floor, and on her. She is constantly pulling at her diaper, sorry "pants", and just hates keeping them on. Her hospice nurse comes tomorrow, but as this is now her 5th time throwing up today, I need to figure out a way to keep her clean. Plus I'm out of clean sheets. Any ideas?