Have a good SLEPT?
edit - Per my list there is a 1 out of 62 chance that the first letter is R. Otherwise it is S. T, L and C are most likely 2nd letter in that order. 50% chance of O in third position. 4th is any number of letters. S and T are the big letters for 5th.
SCOUT did well for me so I think so randomness is still called for. By the way, ROOST (not a guess) is the one word not starting with S that it could be.