The optimal amount or quantity of sleep varies from individual to individual.
A number of studies have shown that in insomnia, poor quality rather than quantity of sleep is associated with impaired daytime functioning, poor physical and mental health and Quality of Life1.
In general, sleep drugs have been approved on the basis of improvements in sleep induction and/or maintenance but not in sleep quality and next day performance2 3. Circadin® is the only drug that shows improvements in both sleep quality and morning alertness significantly higher than placebo.
A six months trial4 showed positive results in:
- Morning alertness
- Sleep latency
- Quality of Sleep
- Quality of Life
- Time to go to bed
- Total sleep time
- Global compression