I don't get sick too often. I get affected by particular allergy seasons, but never so bad as they disrupt my sleep, I just usually have to blow it all out after I wake up. However, I did have a cold around Christmas (worst time to get one), and it was awful. I honestly dislike colds more than any other sickness because the congestion is just a major pain in my... nose. Like you said, makes it difficult to sleep, which is the worst because I love sleep. And all the nose-blowing... It's like you're mostly otherwise alright, but this single element of congestion is ruining your entire game. I hate it.
Yea, normally people stay up a long time, due to the blocked gunk in your nose. I also hate nose blowing as well. It gives me a rash.