Originally Posted by Smashlilman
Your just reading to much into it. I do how ever think that that line was Joss Whedons' way of conveying the fact that Thor doesn't tire.
Actually I think that "what? you gettin' sleepy" line is just Whedon's way of having Steve show that tough little guy from Brooklyn coming through. I love that moment but I dont think it has anything to do with Thor and Odinsleep.