Sleep Well — Speaker Notes

(Warm, unhurried open.) Good morning, everyone. I'm Tanya Vasey, Senior Respiratory Physiologist here at Bon Secours. For the next twenty minutes we're going to talk about something you're all experts in — because you do it every single night. Sleep. And, more to the point, how to do it well.

(Ask for a show of hands.) Quick show of hands — who has sacrificed sleep this week for work, a boxset, or the phone? (Wait for the hands and the laugh.) Guilty, all of us.

Here's the thing: while you're lying there apparently doing nothing, your body is doing some of its most important work — repairing tissue, resetting the brain, filing away memories, tuning the immune system, steadying your mood. Sleep isn't the thing you squeeze in around life. It's the foundation that lets everything else work — a pillar of health, right alongside diet and exercise.

Your body runs on an internal 24-hour clock. Every line on this chart is a hormone or a system rising and falling on schedule. Cortisol spikes in the early morning to get you up. Melatonin — the sleep hormone — rises in the evening dark and stays low all day. Body temperature climbs through the day and dips at night.

You don't consciously control any of this. But your daily habits either work with this clock or fight it — and that's really what all of sleep hygiene is about: respecting this rhythm.

Once you're asleep you don't just switch off — you cycle. Roughly every 90 minutes you drop down into deep sleep and rise back up into REM, the dreaming stage.

Notice the pattern. Deep sleep — the physically restorative stuff — dominates the early night. REM — which consolidates memory and emotion — gets longer toward morning. So a night cut short at either end costs you something different, and it's exactly why quality matters, not just hours. That's the science bit done.

So what happens when you don't get enough? Short term we all know it — irritability, brain fog, memory slips. But sustained poor sleep is linked to real medical consequences: it raises the risk of type 2 diabetes, weakens the immune system, drives weight gain, and increases cardiovascular risk. In children it can suppress growth and even mimic ADHD.

And drowsy driving is, hour for hour, comparable to drink-driving. This isn't about feeling a bit tired — it's a genuine health issue.

How much do you actually need? This is the National Sleep Foundation's guidance. Newborns need a huge amount and it drops as we grow. For adults — the amber bars — it's a solid 7 to 9 hours, and that holds broadly true right through older age.

The 'I only need five hours' brigade are usually just used to being tired. And remember — it's not only time in bed, it's the quality of that sleep.

Now the good news: a great deal of this is in your control. We call it sleep hygiene — nothing to do with clean sheets. It's simply giving your brain the best possible chance to sleep. It comes down to three things: keep a routine, get the environment right, and prepare your brain. Let's take each in turn.

First, routine — and your body clock, remember, loves boring. The single most powerful thing you can do is fix your wake-up time, seven days a week. Yes, even Saturday. Anchor the morning and the rest of the clock falls into line.

Get some daylight early — it's the strongest signal that it's daytime. And resist the urge to 'catch up' with huge lie-ins and long naps; they just blur the rhythm.

Second, environment. Think cave, not disco. Cool — around 16 to 18 degrees. Dark — properly dark; even a little light can nudge you awake. Quiet — earplugs or a bit of white noise if you need it.

And crucially: the bed is for sleep. If you work, scroll and watch TV in bed, your brain stops associating it with sleeping.

Third, prepare the brain. Caffeine has a long tail — that 3pm coffee is still with you at bedtime, so keep it to the morning. Alcohol is a trap: it helps you nod off, then fragments the back half of the night. Screens away — the light and the stimulation both push sleep back. Build a wind-down ritual: dim the lights, read, breathe.

And this one matters — if you can't sleep, don't lie there clock-watching. After about 20 minutes, get up, do something calm in low light, and go back when you're sleepy. Lying there frustrated just teaches the brain that bed is for being awake.

Let's bust a few myths — the things we tell ourselves at 1am. 'I'll catch up at the weekend' — you recover a little, never fully. 'A nightcap helps me sleep' — we just covered that one. 'Everyone snores, it's normal' — hold that thought. And 'I only need five hours.' (Beat.) Have a quiet think about which of these you've told yourself.

So here's your checklist for tonight — none of it costs a penny and it takes about five minutes to set up. Fixed wake time, a cool dark quiet room, a caffeine curfew, screens off, a wind-down, bed for sleep only, easy on the nightcap, some morning daylight, and a tidy, clutter-free room. Pick even two or three and you'll notice the difference.

(Slow right down — let the slide land.) Now — do all of this, and the vast majority of people sleep better. But here's the important part. Some people do everything right. Fixed routine. Perfect bedroom. No caffeine, no screens. And they still wake up exhausted.

(Pause.) So the question I want to leave you with is this: are you — or your partner — still exhausted despite doing everything right? Because if so, the problem may not be your habits at all.

This is where sleep hygiene ends and medicine begins. One of the most common hidden causes is obstructive sleep apnoea. When you're awake, your airway is open and air flows freely. But in some people, during sleep the airway collapses — breathing pauses, oxygen dips, and the body briefly jolts awake to start breathing again.

And every pause has a knock-on effect: oxygen levels fall, and the heart rate and blood pressure climb. Picture that happening dozens of times an hour, every night for years — it's a real strain on the heart. You're 'asleep' for eight hours but never actually rested.

So how do you know if it might be you? Ask yourself some of these. Do you snore loudly? Has anyone seen you stop breathing? Do you wake unrefreshed — dry mouth, a headache? Restless legs, teeth grinding, sleep-talking? Any cardiac history or high blood pressure?

None of these on its own means you have apnoea — but if several ring true, it's worth getting checked. Good sleep hygiene is the foundation for everyone. But when symptoms persist despite doing everything right, that's exactly when we want to take a closer look.

(Warm, confident, big finish — land it and hold a beat for the room.) So here's my one wish for you tonight. Everything we've talked about is in your hands — a fixed wake-time, a cool dark room, screens down, a proper wind-down. None of it is hard, and all of it adds up.

Do that, and you don't just sleep better — you wake up sharper, healthier and happier. So go home, sleep well tonight… and wake up unstoppable. Thank you! (Smile, pause for applause, then hand over as arranged.)