How to Spot Sleep Deprivation Symptoms

Written by Nectarsleep Editorial Team

Last updated on Apr 10, 2025

Better Sleep Blog
How to Spot Sleep Deprivation Symptoms

In this article:

We spend about a third of our lives in bed—but are we actually sleeping? Turns out, for most of us, the answer is not enough. The Sleep Council found that 70% of people in the UK get seven hours or less each night, falling short of the recommended 7–9 hours. And before you shrug that off and reach for another coffee, consider this: one in three Brits regularly suffers from poor sleep.

So, if you’re staring at the ceiling at 2 AM, wondering why your brain suddenly wants to revisit every awkward thing you've ever said—you’re not alone. But here’s something we should all pay attention to: sleep is the single biggest contributor to living better. Not your diet. Not your gym routine. Not even how many kale smoothies you force down. It all starts with sleep.

Save Up to 45% On Mattresses!*

Get A Better Mattress

Why Are We So Tired?

How often do you find yourself telling someone—your friends, your partner, your colleagues, or even the cashier at Tesco—just how tired you are? It’s become a national conversation. In today’s fast-paced, always-on world, we treat sleep like a luxury rather than a necessity. And that’s where the problem starts.

Because sleep deprivation isn’t just about feeling groggy the next day. It’s been linked to some pretty scary health issues, including:
☠️ Increased risk of heart disease and stroke
🧠 Higher chances of developing Alzheimer’s
⚖️ Weight gain and obesity
🩸 High blood pressure and diabetes
😞 Depression and anxiety
📉 Poor memory and cognitive function

It also weakens your immune system, increases the risk of accidents, and affects your decision-making, creativity, and mood. In other words, skipping sleep is like setting your body up for failure.

Sleep Isn’t Laziness—It’s Survival

Somewhere along the way, we started glorifying exhaustion—as if running on four hours of sleep and a triple espresso makes you more productive. But sleep isn’t a sign of laziness; it’s what keeps you functioning.

Professor Matthew Walker, a world-leading sleep scientist (and proud Liverpudlian), puts it best:
“Humans are the only species that deliberately delay sleep.”

Think about that. Every other creature listens to its body and rests when needed. But us? We stay up doom-scrolling TikTok, binge-watching Netflix, or answering work emails at midnight like it’s an Olympic sport. No wonder we’re struggling.

Of course, it’s not always by choice. There are plenty of reasons why you might not be sleeping well, including:
🍼 Having young children (hello, night feeds and 5 AM wake-ups)
🌍 Jetlag from travel
💼 Shift work or late-night deadlines
🍷 Alcohol, caffeine, or late-night exercise
🩺 Health conditions like sleep apnoea and restless leg syndrome

According to the NHS, one of the simplest ways to tell if you’re sleep-deprived is if you wake up tired and spend the day dreaming about a nap. Sound familiar? Here are some other telltale signs:

The Real-Life Impact of Sleep Deprivation

1️⃣ You Turn Into a Social Zombie 🧟

Ever noticed how you’re not exactly a ray of sunshine when you’re running on little sleep? When you’re tired, you’re less likely to engage in conversation—even with the people you care about. You zone out mid-sentence, forget what was just said, and generally act like you’d rather be anywhere else (preferably in bed).

2️⃣ Your Work Performance Takes a Nosedive 📉

Fun fact: sleep deprivation costs the UK economy £30 billion a year in lost productivity. If you’re struggling to focus, putting off tasks, or making more mistakes than usual, lack of sleep could be the culprit.

3️⃣ Your Memory Starts Playing Tricks on You 🤯

Ever walked into a room and immediately forgotten why? Or spent five minutes searching for your phone… while holding it? Sleep-deprived brains struggle to process and retain information, making everyday tasks feel way harder than they should be.

4️⃣ You’re Moody, Snappy, and Just a Bit Rubbish 😤

When you’re tired, even minor annoyances feel like personal attacks. You’re more likely to lash out, overreact, or just feel generally grumpy. And let’s be honest—no one enjoys being around someone who’s running on fumes.

5️⃣ You Take More Risks (And Not the Fun Kind) 🚨

Lack of sleep affects your judgment in the same way as drinking alcohol. After 17 hours without sleep, your alertness is similar to having a blood alcohol level of 0.05% (that’s just below the UK’s legal driving limit). That means you’re more likely to make reckless decisions without even realising it.

6️⃣ You Can’t Adjust to Change 🚗

Tiredness slows down your reaction times. So whether you’re making a split-second decision at work or driving home on autopilot, your ability to react quickly is seriously impaired. This is why fatigue-related accidents are frighteningly common.

7️⃣ You Rely on Caffeine to Function ☕

If you’re propping yourself up with coffee and energy drinks all day, you’re just masking the problem. And worse? The caffeine cycle makes it harder to sleep, leading to—you guessed it—more exhaustion the next day.

8️⃣ You Get Sick More Often 🤒

Lack of sleep weakens your immune system, making you more vulnerable to colds, flu, and other infections. The NHS estimates that sleep-deprived workers take over 200,000 sick days a year.

The Right Mattress = Better Sleep (And a Healthier You)

Here’s the good news: improving your sleep starts with where you sleep.

If your mattress is lumpy, too firm, too soft, or just plain uncomfortable, it could be sabotaging your rest. And that’s where Nectar comes in.

🛏 Memory foam that adapts to your body—so you get the support you need, no matter how you sleep.
🌡 Temperature-regulating design—say goodbye to overheating and restless nights.
💤 Pressure relief where it matters most—because waking up sore isn’t fun for anyone.

Your health starts in bed. And if a better mattress means better sleep (and fewer of the side effects above), isn’t it time to invest in your rest?

Ready to start sleeping better? Shop the Nectar range today.