21-Day Sleep

18 min Why Sleep Matters A clear, steady introduction to the 21-day sleep course, setting out why sleep matters without turning it into another source of pressure. 15 min Sleep Pressure That Builds Across the Day Sleep pressure gathers quietly from the moment you wake, building through the day as adenosine pools in the brain. 16 min Body Clock and the Light That Sets It Behind the eyes, a rice-sized master clock listens for light and sets the rhythm of the day. 14 min What Happens While You Sleep Sleep is not one unbroken block, but a series of four to six waves, each moving through lighter sleep, deep repair and REM dreaming. 20 min Why You Wake in the Night Night waking is often normal; the trouble starts when the mind catches on and turns it into effort. 11 min Two Things Sleep Hates Day six strips sleep advice back to two simple levers: less bright light at night, more daylight soon after waking. 14 min How Your Body Is Set Up for Sleep Tired and sleepy often get treated as the same thing, but the body knows the difference. 25 min When Bed Starts to Feel Like Work Bed can become charged with wakefulness when too many nights have been spent trying to sleep there. 24 min Meeting the 11pm Mind The eleven o’clock mind can feel like a threat when sleep already feels fragile. 22 min Worry Park Tomorrow has a habit of climbing into bed with you, replaying forms, meetings and loose ends in the dark. 17 min Effort Trap Sleep often slips further away when it becomes something to achieve. 19 min Catastrophising About Sleep Waking at three in the morning can turn a small fact into a forecast of disaster. 19 min Compassionate Pre-Sleep Voice The hour before sleep can turn harsh, with an inner voice that sounds tired, sharp, or accusing. 25 min Mind That Knows How to Wind Down A closing practice for week two, bringing the mind, worry, effort and inner voice into one nightly wind-down. 32 min Your Wind-Down Ritual Sleep is shaped by the hour before it, not just the moment your head hits the pillow. 20 min Four Things in Your Bedroom Sleep is shaped less by branded kit than by four ordinary conditions: light, temperature, sound and the bed beneath you. 28 min Three Substances, One Habit A clear, unsentimental look at the three things most likely to keep sleep unsettled: caffeine, alcohol and the phone. 28 min Morning Anchor Morning Anchor turns the usual sleep advice around: the evening is shaped by what happens after waking. 38 min Bed for Sleep Only, and a Gentle Window Day nineteen pairs two practical sleep tools: keeping the bed for sleep alone, and setting a gentle sleep window based on your diary rather than wishful thinking. 38 min When Sleep Slips Again Sleep will slip again, and that doesn't mean the work has failed. 33 min Living a Better Sleeping Life A quiet closing for day twenty-one: the course gathered back into one shape, from sleep pressure and morning light to worry, relapse and the gentle sleep window. 15 min Napping, Honestly A clear-eyed look at naps: when they help, when they quietly steal from the night, and why sleep pressure matters.