Difficulty getting to sleep and staying asleep. This symptom continues night after night for a month or more in cases of chronic insomnia.
Sleep that is not rejuvenating. Individuals with insomnia often feel like they haven't slept at all.
Morning headaches. This is often called the hangover effect and occurs when an individual did no drinking the previous night.
Difficulty concentrating. Sleep deprivation affects motor skills and memory.
Irritability. Sleep deprivation can affect mental health, often causing moods to shift rapidly from depression to irritability to anger.
Bloodshot eyes. Insufficient oxygen to the cornea causes small blood vessels in the eyes to become inflamed. Fatigue can cause your eyes to become bloodshot.
Daytime sleepiness. Daytime sleepiness can become so excessive that working becomes difficult and driving is dangerous.