sleeplessness (n.)

• acuity
• acuteness
• agility
• alertness
• attention
• attentiveness
• brightness
• consciousness
• insomnia
• insomniac
• keenness
• nimbleness
• promptitude
• promptness
• punctuality
• quickness
• readiness
• restlessness
• sentience
• sharpness
• smartness
• vigil
• wake
• wakefulness