The effect of this mod is to make all sleep and unconsciousness effects inflicted by items and spells last until their duration runs out. At the moment all sleep inflicting items and spells (erroneously) do this, but the developers intend to refine this behavior a bit so that only specific spells and items inflict a sleep effect that can be broken by damage while others will inflict an unconsciousness that is not broken by damage. In BG2:EE update 1.3 sleep and unconsciousness inflicting effects were changed so that if a creature suffering from these effects were damaged they would wake up and the effect would wear off.