How do you wake your sim up after woohoo?

Fill their energy by opening the cheat box (hold ctrl, shift, and c) then type maxmotives and they should wake up.

Simpler, just X out the sleep command at the top left. If they are tired, though, you can adjust sliders of you have the cheats on. To turn those on, and not have to use the "maxmotives", in the neighborhood, press CTRL+SHIFT+C, and enter exactly (without the quotation marks) "boolProp testingCheatsEnabled true". Then, in any lot, you can click and hold to move the sliders up or down, one at a time, as needed. Can be really handy.