Sleep?
 

If Im not going to use the snow in the near future should I let it sleep or should I unplug the unit, can't seem to find the direction in the manual?

haven't used a snow yet, but I believe it is just like the TI in that you just have to press the two buttons together for a few seconds to shut it down. No need to unplug it every time you are done (unless you are very paranoid about power spikes!)

you still could use a fused AC distributor to prevent damage from any power spikes / lightnings.

Unpluck... :)