Commentary: We’re sleeping more since the pandemic, but we aren’t feeling rested
Good sleep is not just about quantity, but also quality, say sleep scientists.
QUALITY ABOVE QUANTITYGood sleep is not just about quantity, but also quality. Sleep quality takes into account how long it takes to fall asleep, how many times or how easily you wake up during the night, how hard it is to fall back asleep and how refreshed you feel in the morning.
The surprising finding from new studies looking at lockdown sleep is while people are getting more of it, the quality of sleep is worse.A recent UK survey from King’s College London backs up these findings. Half of the UK population said their sleep is more disturbed during lockdown and three in ten said they sleep longer but feel less rested.
Advertisement(Photo: Unsplash/Siavash Ghanbari)It’s not just about feeling tired, there are many possible consequences of declining sleep quality. Good-quality sleep is crucial for the body’s immune system to fight off infectious illness.In a landmark study in 2009 researchers monitored 153 volunteers’ sleep patterns for two weeks, and then exposed them to a virus causing the common cold. Participants who had poor-quality sleep during the two weeks were six times more likely to develop a cold. headtopics.com
The link between sleep quality and health was bolstered by a large-scale study where 30,000 volunteers provided data on their physical and mental health and sleep patterns over four years. The results showed positive changes in sleep quality over four years were associated with better health and wellbeing.
LINKS BETWEEN SLEEP, LEARNING AND DECISION-MAKINGGood-quality sleep not only helps you stay healthy, but also helps your mind stay sharp.In a 2019 study university students at the Massachusetts Institute of Technology were given a Fitbit to wear for one term. The Fitbit recorded their sleep patterns while the researchers tracked their academic performance.
Those who slept for longer and got better-quality sleep over the month before an exam – not just on the night before an exam – achieved better grades than other students.READ: Commentary: Sleeping more is essential to performing well at work and school
One explanation for the link between sleep quality and the students’ success could be while sleep strengthens memories formed during the day, poor-quality sleep might jeopardise this process.One study in 2012 demonstrated this by teaching good and bad sleepers to tap a specific sequence of buttons before a night’s sleep and again when they awoke. headtopics.com
The good sleepers’ finger tapping skills improved overnight by 15 per cent while the bad sleepers improved by just 1 per cent. Sleep does not benefit learning when the quality is poor.(Photo: Unsplash/Matheus Vinicius)From pandemic puppies to late-night online shopping sprees, impulsive behaviour has been a hallmark of lockdowns. While this is partly due to boredom, sleep plays a role too.
One study in 2013 investigated decision-making in adolescents, an age group known for impulsive behaviour. Adolescents with poor sleep quality had poorer decision-making skills and made riskier decisions in a gambling game compared to their peers with good-quality sleep.
READ: Commentary: Tracking your child’s online activity should not be done covertlySTRATEGIES TO SLEEP BETTERThe good news is there are effective strategies for improving your sleep quality. A consortium of sleep scientists has published a list of recommendations.
These include keeping a regular sleep schedule, avoiding using the bed for activities other than sleep (including Zoom meetings), avoiding electronic devices before bedtime, taking regular exercise and getting as much daylight as possible, especially in the mornings. headtopics.com
Before lockdown, only 44 per cent of UK adults were satisfied with their sleep. For some, lockdown held the promise of more sleep as we were released from the shackles of office hours and a daily commute.While this dream of more sleep has come true for some, it might not be the kind of sleep they were expecting. Investing in the quality of your sleep is important – you might find yourself smarter and leading a healthier life.
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Commentary: Non-essentials are sleeping more since the pandemic, but we aren’t feeling rested