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The best wearable and smart home technology to help you sleep

These gadgets can help you sleep deeper and feel more refreshed in the morning

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Friday March 13 is World Sleep Day, which aims to draw attention to the importance of regular, quality sleep, and the dangers of not getting enough rest each night.

Much has been said of the importance of sleep in recent years, with particular attention paid to how the blue light emitted by the LED-lit displays of computers and smartphones lower the quality of our sleep.

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Simply put, the bluish hues of device screens delay our natural daily production of melatonin, which helps to initiate sleep each evening. Because we continue to shine bright lights into our eyes deep into the evenings, our body no longer gets the natural cues (ie, sunset) that it is used to, which affects our ability to earn eight hours of deep sleep each night.

While Apple and Google both now offer systems for reducing blue light from smartphone displays in the evenings (along with Apple computers and their Night Shift feature), there are many other technologies available to help understand and then improve your sleep hygiene.

Here is a look at the options available for your smart home:

Smart speakers and displays

Google Nest Hub The Nest Hub on a bedside tableGearBrain

Both the Amazon Echo and Google/Nest Home product ranges provide access to catalogues of calming sounds to help you drift off at night.

If you own a Google Home smart speaker, there are 15 effects to choose from, including running water, a crackling fireplace, rain, thunderstorms, and white noise. All you have to do is say: "Hey Google, help me relax" to hear a sound at random, or ask for a specific sound by saying: "Hey Google, play [name] sounds."

The full list of ambient sounds is:

  • Relaxing sounds
  • Nature sounds
  • Water sounds
  • Running water sounds
  • Outdoor sounds
  • Babbling brook sounds
  • Oscillating fan sounds
  • Fireplace sounds
  • Forest sounds
  • Country night sounds
  • Ocean sounds
  • Rain sounds
  • River sounds
  • Thunderstorm sounds
  • White noise

Things are a little more complex with the Amazon Echo. Asking Alexa to play ambient sounds encourages her to offer up a range of 'skills', such as Ambient Noise by Invoked Apps LLC. This skill has a huge range of sounds to choose from, including rain, thunderstorm, airplane, city, rainforest, wind and shower - plus some unusual ones like hair dryer, washing machine and heartbeat.

All you have to do is ask Alexa to find the skill (or enable it here) and say: "Alexa, ask Ambient Noise to play [sound name]." You can also specify how long you want the sound to last.

Both platforms are also good for meditation, with access to guided classes from the likes of Calm and Headspace aimed specifically at helping you sleep.

Smart lighting

Philips Hue smart lighting Smart lighting can help prepare your body for sleep each evening Philips

As we mentioned earlier, ambient lighting makes a bi difference when it comes to getting enough sleep each night. Too bright, and specifically too much blue light emitted by LEDs, can wreak havoc with your melatonin production and daily circadian rhythm.

Thankfully, smart lighting can be adjusted to shine brightly in the morning to wake you up and help you concentrate during the day, they switch to a warmer, softer and more orange glow in the evenings. This shift gives your body the visual cues it needs to begin preparing for sleep.

Bulbs are available from a wide range of companies, like Philips Hue by Singify, LIFX, C by GE, Ikea Tradfri and Wyze.

As well as being set to shift in temperature and brightness in the evenings, they can be programmed to do the opposite in the morning, helping you to wake up more gradually than the sudden shrill of an alarm.

Smart lighting can also be helpful at night when you need to visit the bathroom. Install a wireless motion sensor and, once set up through the Hue app, it can be set to switch a single light on in the hallway to a low brightness when it detects movement at night - handy for lighting the way for you but not disturbing anyone else.



Sunlight simulator

Lumie Lumie lights act as sunrise and sunset simulators Lumie

Instead of setting up a smart lighting system, you could invest in a single sunrise simulator. Lumie specializes in these lights, which are designed to help you fall asleep and wake up.

They gradually transition from bright white to a warm red/orange glow at night, then do the opposite to wake you up again in the morning. The duration of each can be set to your preferences, and there are audible alarms too if you need them.

We have lived with a Lumie for over a year now and have found it very good at waking us up, purely with light — especially useful on dark winter mornings. Other brands also sell lamps which simulate the sun, such as Philips, Verilux, Mosche, and Northern Light Technology.

Air quality monitor

Awair air monitor Awair 2nd edition air quality monitorGearBrain

Greater exposure to nitrogen dioxide and fine air particles known as PM 2.5 can lower your sleep efficiency, the measure of how long you are asleep compared to how long you spend in bed. The more polluted the air in your bedroom, the less time you will spend asleep.

To help understand the quality of air in your bedroom, devices like the Awair 2 can help. In particular, the Awair 2 measures PM2.5 and offers a score based on how conducive your air quality is to sleep. If things change, the smartphone app alerts you and offers suggestions — like to open or close a window, and switch on a fan. With IFTTT (If This, Then That) integration, you can have a fan or dehumidifier switch on automatically when your air quality changes.

For those on a larger budget (and with a large bedroom) you could try out the Dyson Pure Hot + Cool which is an air quality monitor, heater, cooler and air purifier all in one.

Smartwatch or fitness tracker

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Most smartwatches and fitness trackers offer sleep tracking, logged with their accelerometers and in some cases their heart rate monitors, too. For example, the Alta and Charge fitness trackers by Fitbit both provide 'sleep insights' by showing on their companion smartphone app when you were in the deep, light and REM stages of sleep through each night, and when you were awake.

Humans sleep in cycles, falling from awake, through REM, then into light and deep sleep, before coming back up through the stages to being awake again. This happens several times each night and is logged by the Fitbit app, along with your heart rate and the time you spent in each stage.

Smartwatches can also do this, but their limited battery life means they are not the ideal sleep tracker — unless you don't mind recharging them every couple of days.

If the data shows you are struggling to get to sleep in the first place, try limiting your exposure to blue light before bed (in other words, put your phone away an hour before you plan to settle down). If you are waking up early in the summer months, consider investing in some black-out blinds.

Apple is rumored to finally be adding a native sleep-tracking app to the Apple Watch later this year, although alternatives from third-party developers have been available for some time already.

Dedicated sleep tracker

Product image of the Withings Sleep tracker The Wthings Sleep costs $100 Withings

Dedicated sleep monitors which fit under the mattress are also available, such as the $150 Beddit 3 Smart Sleep Monitor and the $100 Withings Sleep. However, while its monitor remains on sale, Beddit was acquired by Apple in May 2017, so we wonder if a new model (perhaps even branded by Apple) is on the horizon. That said, as of March 2020 the Beddit 3 is still sold on the Apple Store, with no sign of a replacement just yet.

We reviewed the $100 Withings Sleep (briefly called the Nokia Sleep) in 2019 and like how it fits under the mattress, where it cannot be seen or felt, yet automatically and accurately logs sleep data every night.

Your sleep is scored out of 100 and a chart shows how you went in and out of REM, light and deep sleep. The Sleep also tracks interruptions, the time it took you to get to sleep, the time it took to get up, your heart rate during the night, breathing disturbances (which can be a sign of sleep apnea) and whether you were snoring.

Smart bed

Eight Sleep smart bed Smart beds can adjust their position and temperature to help you sleepEight Sleep

Finally, and if you have a particularly large budget, you could consider a smart bed. These cost from in the region of $2,000 (plus a subscription in some cases), and are offered by brands like Eight Sleep, Rest and Sleep Number.

These beds can have their position adjusted, and some can even change temperature during the night to help regulate your body temperature, keeping you soundly asleep, On that note, and contrary to popular belief, a slightly cooler room is better, and a lowering body temperature helps you fall asleep.

That's why a hot bath before bed helps - not because it is warming you up, but because the extra heat causes your body to work hard to cool down, which helps promote sleep.

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