Who gets up to feed him? Umma Key of course!
Growing boys need a lot of food! Especially when they are dancing every day!
Key: "Taemin always gets hungry in the middle of the night so he’ll wake someone up to ask for food. Because Taemin is a good friend, I have woken up several times making food for him."Source:SHINeetown
What I find really cute is...as much as Umma Key may complain about Taemin, he's still willing to get up in the middle of the night to feed him, and probably redressing Tae too as he has a habit of stripping in his sleep >.<.