BEST FOR THE WINTER BLUES

There are good reasons why the British Swimming team use Lumie clocks to get them up for training on dark, winter mornings. This best buy wakes you with gradually increasing medical-graded light that really helps to regulate sleep and wake cycles – so is ideal for anyone with seasonal affective disorder (SAD). You can choose your preferred final light intensity and tap-control allows you to snooze the alarm beep. Bodyclock Spark 100, £79, lumie.com