I know that my healing capabilities are strong and I rest in that.

Rest is not the pause between the work. During an illness it very often is the work. Growth hormone runs highest in deep sleep. Tissue gets rebuilt at two in the morning, on a schedule you have no say in whatsoever.

There is a reason night staff dim the lights instead of tidying up. Lying still and doing nothing visible is, in this one context, the most productive available use of an afternoon.