Deflect = de·flect dəˈflekt/ verb cause (something) to change direction by interposing something; turn aside from a straight course. "the bullet was deflected harmlessly into the ceiling" synonyms: turn aside/away, divert, avert, sidetrack; More Reflect = re·flect rəˈflekt/ verb 1. (of a surface or body) throw back (heat, light, or sound) without absorbing it. "when the sun's rays hit the earth a lot of the heat is reflected back into space" synonyms: send back, throw back, cast back "the snow reflects light" Sleeper shoots heat, not rocks.

Because the Sleeper Simulant isn't firing matter, it's firing energy.