
By the end of 2022, more than 650 million COVID infections had been reported to the World Health Organization. With the true number likely much higher, and the tally increasing by hundreds of thousands every week, the scientific community has been focused on understanding the impact of COVID on our physical health, mental health and brain function.
In the early stage of the pandemic, sleep scientists charted the costs and benefits of lockdowns on sleep patterns. The main finding was that we slept more in lockdown but the quality of our sleep was worse.