Washing hair for bedridden seniors who lie in bed mostly on their backs or sides with contractures takes practice and patience. And if you didn’t have that “no rinse shampoo and body wash”, you would have had to do it the old fashion way. Soap. Shampoo. Water. More important, if you had not wash the hair in a while, it most likely would need a regular hair washing to get out the built up grime and grease balls.