My father may need to come home from rehab with a catheter and diapers, cannot get out of bed himself. Can sometimes eat himself but weak because he refuses to take a lot of food and liquids, currently graduating from pureed to textured foods. We hope he will be okay with 8-12 hour care because we not be able to afford more. If someone is in bed 15 hrs a night do they need to be turned over or just during day is okay??