Struggling for shut-eye in lockdown? Sleep-tracking devices may help

The lowdown on free apps, sensors you wear and a mat you slip under your mattressMonths in covd-19-induced lockdown have for many of us taken a toll on our sleep. From the late-night scrolling through news to the bizarre dreams and midnight wake-ups worrying, the stress of the coronavirus pandemic has been wreaking havoc on our collective sleeping habits.A recent survey found two in five people in the UK have experienced sleep disturbance. And with a good night’s rest considered an importa