Nightowl sleep study manual#
Nightowl sleep study software#

The system consists of a sensor placed on the fingertip and a cloud-based analytics software. The objective of this study is to evaluate the performance of a miniaturized sleep apnea test, called NightOwl. This study will be performed in a sleep lab environment. The investigators will also compare the total sleep time (TST) derived by both systems.

Nightowl sleep study manual#

In order to assess NightOwl's performance, the investigators will compare the respiratory event index (REI), defined as the number of respiratory events per hour of sleep, derived by the NightOwl system, to the apnea-hypopnea index (AHI) obtained from manual analysis of the polysomnography (PSG), which is the gold standard for sleep apnea diagnosis.

Nightowl sleep study software#

The software derives actigraphy from the former, and blood oxygen saturation and peripheral arterial tone (PAT), among other features, from the latter. The sensor acquires accelerometer and photoplethysmographic data.

Why Should I Register and Submit Results?.It’s also possible that people with depression have more irregular sleep schedules, which would need to be explored in future research. “Circadian misalignment could also lead to inadequate sleep duration and quality, which could also impair mood and exacerbate mood disorders,” Knutson said.Īnd finally there’s the chicken and egg problem, which often plagues research that can only show an association, not causation. Want some tips for better sleep? SIGN UP FOR CNN’s SLEEP, BUT BETTER newsletter Indeed bright light therapy is a treatment for some forms of depression,” she explained. “Light exposure is greater among morning types and may be reduced in those with greater sleep variability. Other possible reasons include more exposure to sunlight for those who rise early, Knutson said. It’s a term borrowed from the jet lag we experience when we travel between time zones, only social jet lag is the “consequence of the discrepancy between an individual’s own biological rhythm and the daily timing determined by social constraints,” Tyrrell explained. “Social jet lag” occurs when we go to bed later and wake up later at the weekend than we do on weekdays when we have to get up for work. This may in part be due to people who are morning people are less likely to have ‘social jet lag,’ ” Tyrrell explained. “if you’re a morning person, then you are less likely to have depression and more likely to report a higher well-being. “The health problems associated with being a night owl are likely a result of being a night owl living in a morning person’s world, which leads to disruption in their body’s circadian rhythms,” said sleep specialist Kristen Knutson, an associate professor of neurology and preventive medicine at Northwestern University Feinberg School of Medicine, who was not involved in the study.Ĩ ways to fall back asleep after waking in the night Researchers compared that sleep information to self-reports of mood and found that people with a misaligned sleep cycle more likely to report depression, anxiety and have fewer feelings of well-being. The study used sleep data gathered from wrist activity monitors worn by more than 85,000 participants of the UK Biobank Study, which houses in-depth genetic and health information on more than a half a million Brits. Sleep hygiene: 8 ways to train your brain for better sleepīut it’s a bummer if you’re a night owl, primed to perform better in the afternoon and evening and stay up late, according to a new study published Monday in the journal Molecular Psychiatry. There are ways to train your brain for better sleep.