Ryan is restless, throws things, has occasional sleeplessness and likes to chew.
From the delawareonline.com
I did not think that there was something else contributing to his sleeplessness.
From the businessweek.com
Other side effects of withdrawal include palpitations, sleeplessness and cramps.
From the time.com
But his paranoia, sleeplessness and memory loss increased, as did his headaches.
From the independent.co.uk
Debt-wracked residents are suffering from anxiety, sleeplessness and depression.
From the sacbee.com
It is also popularly believed they can increase irritability and sleeplessness.
From the en.wikipedia.org
So how do you treat sleeplessness if it is not a symptom of a wider condition?
From the telegraph.co.uk
All of sudden, the addiction to dope, the sleeplessness, the fidgeting made sense.
From the stltoday.com
Sleeplessness contributes to anxiety which contributes to not being able to sleep.
From the psychcentral.com
More examples
Wakefulness: a temporary state in which you are unable (or unwilling) to sleep; "accept your wakefulness and sleep in its own contrary way is more likely to come"
Insomnia is a symptom that can accompany several sleep, medical and psychiatric disorders, characterized by persistent difficulty falling asleep and/or difficulty staying asleep. Insomnia is typically followed by functional impairment while awake.