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