1. A system comprising: a controller having logic to, determine a false entry probability; conduct a reward determination for a plurality of sleep states to obtain a plurality of reward determinations with respect to the system; and select a sleep state for the system from the plurality of sleep states based at least in part on the plurality of reward determinations; and a power management unit to place the system in the selected sleep state, wherein the false entry probability is a percentage probability that one or more stochastic interrupts will occur before an energy break-even time associated with a sleep state, and is based at least in part on an estimated stochastic interrupt arrival rate.