You could describe such a man as," bedraggled" or "dishevelled", especially if he looked messy or unkempt. If you want to describe how he is probably feeling, you could say he was "exhausted" or use the expression, "dog-tired" Hope this helps

If it's a question: What DOES A man who slept (for) 5 hourS for the last 3 days look (no S) like? Otherwise ,I guess, it's fine )

Hi Margarita, The answer to this depends on what type of description you're going to write, because that changes how you would say this. For example, will you be saying something like: The man looks (tired/angry/surprisingly awake, etc...) ? Or, The man looks like (my mother's cat, a wilted spinach leaf, etc...) ? Or, The man looks like (he is going to cry, he wants to be back in bed, etc...) If you include the description you're planning to give, it will be easier to answer. :)