Improve Your Caffeine-Sleep Cycle

Loop Keeps You Alert Without Too Many Cuppas

Caffeine's Impact On Sleep

We're all familiar with the alerting effects of caffeine. That's part of the reason we drink it in the first place. But understanding how caffeine interacts with our body helps explain its impact on sleep.

While we're awake, a hormone called adenosine accumulates in the body. As adenosine builds up, it causes us to feel sleepier. This is known as sleep pressure.

Caffeine has a similar molecular structure as adenosine, which allows it to bind to the same receptors. This temporarily blocks the sleep-inducing effects of adenosine, making us feel alert.

The Truth About Caffeine And Its Effect On Sleep Quality

What Science Says

The Best Time To Have Coffee (And When To Stop)

If you've read this far, you may be starting to worry about caffeine's impact on sleep. But you can mitigate the negative effects of caffeine by being mindful of when you consume it.

Researchers study a substance's half-life: How long it takes the body to halve the concentration in the bloodstream. Caffeine has a half-life of 5-7 hours. That means if you have a flat white at 3pm, your body will have only metabolised half the caffeine content by 8pm. The other half is still in your system.

Avoiding caffeine 8 hours before bed is a good rule of thumb. However, exactly how many hours you should give depends on many factors.

The rate of caffeine metabolism varies widely from person to person, with 50% of the population possessing a gene that dramatically slows the metabolism of caffeine. Pregnant women or those taking birth control also have a longer caffeine half-life.

Additionally, it's important to consider how much caffeine you're taking. Caffeine's quarter-life is much longer than its half-life. That means high doses of caffeine, even in the morning, may still affect your sleep.

Food Standards Australia New Zealand recommends that you don't exceed 400mg of caffeine. If you're pregnant, it's recommended you consume only half that amount at 200mg.

Coffee is by far the primary source of caffeine. However, many teas, soft drinks and energy drinks contain high amounts of caffeine. Loose leaf tea contains more caffeine per gram than coffee. But we tend to use more ground coffee per cup.

A New Way to Manage Caffeine's Impact On Sleep

Loop is a circadian rhythm lamp that uses light therapy to regulate the body's natural sleep-wake cycle. Caffeine is a stimulant that can disrupt this cycle, making it more difficult to fall asleep and stay asleep. However, using Loop can help manage caffeine's impact on sleep.

It resets the circadian rhythm. Exposure to the right type and amount of light at the appropriate times can help reset the body's circadian rhythm, which regulates sleep and wakefulness. By using Loop at the appropriate times, such as in the morning to help wake up or in the evening to wind down, you can help regulate your circadian rhythm and improve the quality of your sleep.


Loop will improve your...






How does it work?

Whether in your home or workspace, position a Loop nearby and experience the benefits of its life-enhancing light delivery.

Why Loop?


Our circadian rhythm impacts our entire body. From our metabolism and stress and anxiety levels to our cardiovascular systems. The Loop gives you more control over your health and wellbeing.


Sleep, productivity, and our environment are important factors in feeling our best. If you struggle to get a good nights rest and feel like it impacts your performance, The Loop will improve your sleep.

The OSIN purpose

Start Improving Your Health Today

Position a Loop nearby and experience the benefits of its life-enhancing light delivery.


I started using The Loop because I wanted a better sleep and it did not disappoint. I fall asleep easier, and stay asleep longer.


Working inside has benefits on cold days but it does suck on summer days to miss out on natural light and The Loop on my desk makes a difference to my mood and my sleep.


Has definitely improved my sleep. Looks cool too...



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