Drowsy

B428 lists this as an Irritating Condition
no price is given for it as an enhancement on B36 Affliction
the will roll per 2 hours inactivity (not entirely clear what 'active' which cancels this, requires) where a success gives -2 to DX/IQ/control resembles the effects of B427 where you have lost more than 1/2 FP due to sleep, which uses "standing watch" as an example and mentions an added penalty for those with Slow Riser.
This may mean that rather than affliction a Fatigue Attack with Hazard is intended.
B140 has that listed for Missed Sleep.
category:Irritating Conditions