Can’t sleep even when you have time to? Why CBT-I is the first-line approach for insomnia, and why its benefits may outlast sleeping pills.

Why the best evening routine removes obstacles to sleep rather than adding rituals, and how to build one that suits you.

What happens to the immune system while you sleep, and why sleep matters most when you’re run down.

CPAP is an effective option for obstructive sleep apnoea, but sticking with it can be hard. How lifestyle changes and psychological support can help.

What melatonin does in the body, how it differs from sleeping pills, and when it may or may not help.

How sleep helps us store what we learn, how sleep loss affects attention, and practical tips for sharper days.

How our internal body clock sets our daily rhythm, why some of us are night owls, and what happens when the clock falls out of step.

The final part of the series: how the skill of mindfulness can change your relationship with sleep.

How cognitive-behavioural therapy for insomnia (CBT-I) works: stimulus control, sleep restriction and cognitive restructuring.