[unparagoned]

A human requires sleep the update their mental model to use that learning years later.

Take a human and prevent them from sleeping after covering a fact then years later they won’t know it.

[rowanG077]

sleeping helps learning, but people can learn without sleep. You can teach something to a person and they can usually do it immediately in some capacity. If you prevent a person from sleeping they will have reduced capacity to remember things. But it will most certainly not be zero.