B717 (Formerly MD-95)
Fatigue
No Specific Anomaly Occurred All Types
Flight Crew Took Evasive Action
Human Factors
Even though the trip pairing should have allowed for more than enough rest; I wasn't able the get more than 7 hours total of restless sleep in those two nights.  I found myself making mistakes that I never made before on that last leg; such as looking right at the pack switches and turning them off instead of the hydraulic  switches.  Scheduling sent an ACARS enroute to call after we landed and I sent one back calling in fatigued.  Restless sleep on my part; not sure why.
B717 First Officer reports informing crew scheduling that he is too fatigued to take another flight at the end of his scheduled trip pairing.