"Restless sleep may involve the following issues: tossing and turning trying to get settled and comfortable; the feeling of being only half-asleep or that you’re not sleeping deeply; constant stirring because your mind is racing; frustration with the inability to sleep soundly; not being able to fall back asleep quickly after waking up unexpectedly. A main sign or symptom of restless sleep is often found the next day, when an individual may feel tired, sluggish, or mentally off." (SleepFoundation.org)