I took care of my mother for 2 years at home before she died. As I write, my 88 yr old father will now be coming to live with me and I will be taking care of him. Have also taken care of various other family members over extended illnesses.
Other than supplies and training in what to do for first aid/medical treatments I think it’s important to learn how to handle doing things for a patient that can not leave the bed.
Learn how to change sheets with a person in the bed. Learn how to move them in the bed safely. Learn now. Makes care much easier when you have confidence/know how to do these things.
Here is a video of how to make a bed with a person in it. I’d like to recommend you watch the other videos in the series too.