nippyitus
Nippyitus is when a person has not slept well, or at all for a long period of time, and the body breaks down. The individuals body has no recourse but to sleep. After time the person will come down with this illness. This is not contagious, but can effect one's body for an extended period of time.
My Wife hasn't been sleeping at all lately. She came down with nippyitus today, and it doesn't look good.