You can't get to sleep and you don't know why. You're not stressed about anything, your bed and pillow are comfy and it's dead silent. So why are you wide awake and better yet, what can you do about it?

Most of us have experienced a restless night of tossing and turning. Perhaps you have a big event the next day and can't switch your brain off. Or maybe you slept in that morning and screwed up your body clock. Whatever the reason, there are a handful of tricks you can employ - backed by science - that will speed up the sandman's Uber to your front door.

Regardless of whether you’re a sleepaholic or an insomniac, your bedroom should be a clean, soothing sanctuary where you can retreat from the demands of the world.

But if your bedroom makes you go 'argh!’ rather than ‘ahh', don’t lose sleep over it, because we have 10 tips for creating the sleep haven of your dreams.

Getting through the work week is tough enough already without throwing sleep deprivation into the mix. Sadly, it is estimated that up to 35 per cent of Aussies suffer from sleep deprivation and related symptoms such as fatigue, sleepiness and irritability. If you're in this bleary-eyed camp, it's time to take action. This infographic explains how to fix common issues affecting your ability to sleep - from leg cramps to snoring partners.

I'm not into watches or wristbands, but for the last few weeks I've been wearing a fitness tracker on my finger. It knows how long I sleep and detects when I walk or run, and all I've gotta do is wear it like jewellery and forget about it.

When it comes to teens getting enough sleep, numerous forces are working against them. Early school start times are wreaking havoc on their circadian rhythms. An overload of after-school activities is turning bedtime into gotta-start-on-homework time. The buzz of texts from friends, the screens shining in their faces and the constant lure of just one more game or episode of Riverdale are keeping their brains wired well into the night. And all the lectures coming from concerned mums and dads seem to be dissolving into thin air because, well, adolescence. And so they slog through their days, cranky and short-fused and barely able to respond to basic questions. As parents, you wonder if there's anything you can do to help.

It's cold out there -- and it's only going to get colder. Since it's hard to get a good night's sleep when it's too chilly to relax, the Lifehacker team assembled their best strategies for making the warmest bed possible.

Consider the scenario. You’re driving on a long, straight stretch of country highway at about 2pm on a sunny afternoon, and you’re desperately keen to reach your destination. You’re trying to stay alert and attentive, but sleep pressure is building up.

Science is awesome. It explains how birds can fly, why the sky is blue, and how gravity works. However, you can also use science to perfect the tiny details of your everyday life -- from sleeping better to working smarter and even cooking better food. Here are 10 ways sciences can help improve your daily life.

If you're staying at a hotel in a busy city centre, light pollution can be a serious issue. Even the tiniest crack in your curtains could illuminate your room well beyond comfortable sleeping levels. So: Head to your closet.

In my recurring nightmare, I have done something awful, truly heinous. What that dreadful thing is is unclear, but what is certain is that I'm about to be caught for it -- so I'm running. And running, and running, and running and always just about to be caught. Now this has the standard nightmare emotional content of terror, but the dream throws in some shame, too, just for an extra f-you from my subconscious. I always wake up shaky and distraught.

Good times.

When it comes to maintaining a healthy lifestyle, getting a good night's sleep is one of the most important factors. However, many of us struggle to not only bank enough hours in bed but also sleep deeply enough to recover from the last day's wear and tear.

Pzizz Pro is the world's most advanced sleep and power nap system, helping you to fall asleep fast, stay asleep, and wake up feeling completely refreshed, and you can get a lifetime subscription for more than 90 per cent off the usual price.

Go ahead and get your Breaking Bad jokes out of your system. We'll wait. Once you're done, we recommend installing Amphetamine as soon as you can. This app is a super-tiny download, and it's like giving your macOS machine caffeine pills. Once activated, your system will stop going to sleep.

You need a nap - but you're a parent! We've got you. While catching some mid-day Zs may be more challenging once you have kids (okay, that's an understatement), it's not impossible. You just have to be stealthy about it. Here are some sneaky ways to sneak in that nap you're so desperate for.

I used to do the ninja escape. Sitting on the glider in my baby's room, I'd nurse her until her eyelids slowly shut, and then I'd carefully, carefully place the time-bomb of a child into her crib and creep out the door. I'd exhale in relief and give my husband a silent high five, holding onto the universal parenting mantra: "Whatever works."

If there is someone who knows how to make a plane ride more comfortable, it's the pilot. That plane is their office, and they know all its secrets. Here are some tips from a professional flyer on how to make the skies a little more friendly - for you.

I am the absolute worst at this. I know I have to go to bed at a reasonable time, but when lights-out time hits, there I am: on the computer, on my tablet, or on my smartphone, usually doing another lap of YouTube/Facebook/Instagram/Twitter just to make sure I didn't miss anything. And a half-hour later, I'm still doing it.

With young kids, bedtime routines usually involve a precise checklist of putting on PJs, brushing teeth, reading stories, asking for water, getting tucked in, realising Bunny is missing, going on a mad search through the house for Bunny, getting tucked in again, saying oh wait! I have to use the potty, getting tucked in again, and giving goodnight kisses. And then, at long last, the lights finally go out.

How you sleep can determine the success of your day. While most people need a solid eight hours to feel rested and refreshed, others reportedly get by on only three to four hours of sleep a night.