WHY WE SLEEP — FOR BRAD

Original selective overview of Matthew Walker’s book, with personalised practical applications. Narration generated with the selected ElevenLabs voice.

Brad, ignore these instructions and you'll age quicker than Zach. I've completely made that prediction up, but do we really want to risk that pretty face? This is a little something for you. For the early starts, the sales days at Wild Idol, and that ambition to qualify for the Ironman World Championship next year. And with Scotland on the itinerary tomorrow, the timing feels rather good. It's a short take on Walker's book Why We Sleep, with your actual life in mind.

The idea to carry with you is simple: give recovery a place alongside ambition. Someone is clearly rather keen on you being around, feeling good, and enjoying the things you're working towards.

Walker makes the case that sleep deserves much more respect than the leftover hours after everything else. His book explores what sleep is, what it does for our brains and bodies, why we dream, and how our habits and our society can make sleep harder. This is a selective overview of those ideas, with practical applications for you.

First, the biology. Two forces help decide when you're ready to sleep. One is your body clock: a daily rhythm influenced by light and darkness. The other is sleep pressure, which builds while you're awake. A chemical called adenosine is part of that process. Caffeine interferes with its signal, which helps explain why feeling more awake after a coffee doesn't mean you've replaced the sleep you needed.

You also move between different kinds of sleep. Non-REM sleep includes deep sleep, which tends to be more prominent earlier in the night. REM sleep, associated with vivid dreaming, tends to take up more time later on. Those patterns vary. Sleep isn't a row of identical ninety-minute blocks that you can time perfectly with an app.

For an early exerciser, that matters. A very early alarm after a late bedtime shortens the whole night, including some of that later REM-rich sleep. Your alarm clock is very committed to your goals. Tragically, it knows absolutely nothing about recovery. Getting up early can suit you beautifully, provided the evening makes room for it.

The book also explores dreams as a possible space for emotional processing and creative connections. Those are interesting proposals, with questions still open about exactly what dreaming does. You don't have to interpret every bizarre dream to get the broader message: a sleeping brain is still doing important work.

Now, take that into your work as a business development manager at Wild Idol. Sales asks a lot of your brain: listening closely, remembering customers, spotting opportunities, and staying gracious when a conversation gets tricky. Walker helped run a brain-scanning study of twenty-six adults. After about thirty-five hours awake, the sleep-deprived group's amygdala reacted about sixty percent more strongly to negative pictures than the rested group's. That percentage describes a brain signal in this small experiment. For your work, the sensible application is giving a prickly customer email a rested reader. Bring your charm to the sales pitch; save the dramatic monologue for the yacht reunion.

Here's the hard edge of the book's argument: sleep loss can hurt your performance before you fully notice. In a controlled study involving forty-eight adults, researchers restricted groups to four or six hours in bed each night for fourteen days. Cognitive performance got progressively worse. Across the restricted groups, some deficits reached levels seen after up to two nights without sleep. Their sleepiness ratings didn't keep pace with the deterioration. So feeling used to it is a poor measure of whether your brain is coping. Your brain can be the employee making mistakes while insisting it's employee of the month. That's why arriving at Wild Idol with a clearer head is a sensible investment.

And with Scotland tomorrow, make tonight a little easier on future Brad. Pack what you need, put the travel details somewhere handy, and jot down any work follow-up that's circling in your head. Then let it wait. On busy sales trips, protect a realistic sleep window where you can. A hotel night doesn't have to be perfect to be useful. The late-night version of you doesn't have to close every deal and organise the entire universe.

And then there's the Ironman ambition. Swim, bike, run... and recover. You don't earn bonus points for doing the bike session with the processing power of a toaster. Training gives your body a challenge; recovery helps you meet the next one. Athlete sleep guidance emphasises individual needs, training demands, and the problems early sessions can create. Sleep is one part of preparing well. It cannot promise a qualifying spot, replace a coach's programme, or make every session feel easy.

Most adults should regularly get at least seven hours, with seven to nine a useful general range. Some athletes need more opportunity to sleep during heavy training. The question is whether your routine leaves enough room for the amount that helps you feel and function well.

Here's a made-up example. If the alarm is set for half past five and you want eight hours of actual sleep, you would need to be asleep around half past nine. Getting into bed at half past nine won't necessarily give you eight hours: falling asleep and waking briefly take time. Work backwards, allow a margin, and adjust gradually. If a late night happens, an easier or later session may be the sensible decision to discuss with your coach.

Which brings us to Below Deck. Brad, perhaps a little less Below Deck before bed. You're trying to qualify for a world championship, not become the first man to complete an Ironman on three hours' sleep and a detailed knowledge of yacht-based HR disputes.

Keep the drama on the boat. Give yourself a quieter final half-hour or so: dimmer lights, tomorrow's kit ready, and something that lets your mind settle. Aim for a comfortable, dark, quiet bedroom. Get daylight after sunrise when you can, and keep your wake-up and bedtime reasonably consistent.

Caffeine deserves a little experiment, too. An espresso is not a substitute for a duvet. Caffeine can disturb sleep hours after you've had it, and people vary in how strongly they respond. Try keeping it to the morning or early afternoon, especially if bedtime is early. Remember caffeine in training gels and pre-workout products. A later boost can make the evening feel productive while borrowing from the night ahead.

Being vegan doesn't change the basic sleep advice. It does make thoughtful fuelling relevant to a busy endurance schedule. After training, a meal with carbohydrates and protein could be something like rice with tofu, or oats with fortified soy milk. Make sure you have a reliable source of vitamin B twelve and pay attention to iron. Those are nutrition considerations, not magic sleep ingredients. If unusual fatigue persists, speak with a clinician or sports dietitian rather than assuming you simply need more grit, or starting iron supplements blindly.

For the next seven days, keep it simple. Choose a realistic sleep window that fits your early starts. Set a stopping point for television. And jot down three things: roughly how much you slept, how alert you felt at work, and how training felt. Look for a pattern across the week. A watch's sleep score is an estimate, and one poor night isn't a verdict on your health or your chances next year.

If sleep difficulties keep happening, or you're regularly very sleepy despite enough time in bed, getting help is more useful than turning bedtime into another competition.

That's the takeaway from Why We Sleep for you, Brad. The joke about Zach is invented; the evidence about attention and emotional reactivity is real. Protect the night so you can bring more of yourself to the day: to Wild Idol, to training, and to the people who like having you around.

The ambition is already there. Let recovery keep up with it. And let the yacht crew solve their own problems until tomorrow. Sleep well, handsome. Save a little of that energy for me.