Melatonin, also known as the 'sleep hormone', is produced by the brain's pineal gland. Melatonin is responsible for regulating our periods of both sleep and wakefulness.
After the sun sets and it becomes dark, a signal is sent to our brain to start secreting melatonin to cause sleepiness, encouraging us over time to curl up and drop into a deep and restful sleep. Exposure to artificial blue light after the sun sets disrupts this evolutionary process of 'priming' you for sleep. This harmful light suppresses the release of melatonin as it signals your brain that it is still daylight, trying to keep you awake and alert.
Melatonin plays a significant role in our overall health, one of its key roles is to counteract stimulating and energetic hormones such as cortisol in your system. When melatonin is high, cortisol will be low, this allows us to be in a low stress and relaxed state which promotes our body to obtain restful sleep and boosts cell regeneration. However if melatonin is low (due to being suppressed from blue light), cortisol will remain high - keeping you energised and stimulated at night, disturbing quality of sleep. Constant high cortisol equates to constant high stress, which will wreak havoc on the body! In this way, melatonin is necessary to maintain a regular and healthy body clock and sleep wake cycles.
For more detailed information on melatonin please see our blog article "Melatonin 101 – Why This Sleep Hormone Supercharges Health and How You Can Produce More"
Blue light is a colour in the visible light spectrum which falls within the 400-500nm range.
Blue light in the range of 400-450nm can cause eye damage such as macular degeneration. Blue and green light from 450-550nm has a direct effect on the the brain's ability to secrete melatonin, with a lack of melatonin causing issues for us in both falling and staying asleep.
Today we are surrounded by this harmful blue light from all artificial light sources. This includes computer screens, TVs, smart phones, tablets and conventional LED lighting in your home. Even though we refer to this harmful artificial light as 'blue light' does not always mean the light you notice will appear visibly blue.
For more info on blue light and its effects please read our blog post on What is Blue Light.
Melatonin (the sleep hormone) is produced by our brains which makes us fall asleep and stay asleep.
Darkness causes the body to produce melatonin, which causes sleepiness, signalling to the body to that it is time to sleep.
Exposure to blue light at night suppresses the release of melatonin as it signals your brain that it is still daylight, trying to keep you awake and alert.
Reduction in melatonin makes it hard to fall asleep and/or stay asleep, drastically lowers sleep quality, and causes serious sleep disruption.
Quality sleep is essential for maintaining a healthy body and mind.
Getting sufficient quality sleep each night is essential for the health of our body and mind. We’re all familiar with the fatigue, irritability, and poor productivity the day after a late night or when we haven’t slept well. However, chronic lack of sleep has other negative health consequences.
When we are in a state of deep sleep, the body is able to rest, repair and heal. Sleep deprivation and poor sleep quality have been linked to high blood pressure, heart disease, memory loss, type-2 diabetes, low-immunity, anxiety and depression. A chronic lack of sleep is also associated with increased production of the hunger hormone ghrelin and impaired insulin sensitivity. This results in poor blood sugar control, weight gain and difficulty losing weight despite dieting and exercising. No matter how well you eat or exercise, if you aren’t getting quality sleep none of this will matter and your health will suffer.
If you are working for prolonged periods on computer screens, gaming, or under harsh artificial lighting during daytime hours, you are damaging your eyes from chronic exposure to harmful blue light.
Symptoms can manifest as digital eye strain, dry, itchy or irritated eyes, headaches and migraines, even loss of vision from macular degeneration.
Yes, we have created our fit-over range of glasses which have been specifically designed for this reason. You can continue to wear your existing reading or prescription glasses, and our fit-over glasses will nicely fit over them and provide maximum protection against blue light. We offer these in both the Nocturnal Red Ultra Lens, and the Original Dark Amber lens.
Once the sun has set and your being exposed to any artificial light source we strongly recommend wearing BlockBlueLight Nighttime Glasses (either the Nocturnal Red or SunDown Amber lenes).
These glasses should stay on from the point of sunset up until going to bed. This will ensure maximum melatonin release which will then ensure you obtain deep and restful sleep
Yes, our ScreenTime Premium Day glasses are for people who spend most of their day indoors under artificial light. If you're spending all day in front of a computer, phone, or tablet, then ScreenTime Premium Day glasses are perfect for you.
The benefits of these glasses are that they filter out 50% of all blue light coming from LED and fluorescent light bulbs, smartphones, computer screens, and projector screens.
Daytime glasses make you much less tired when looking at a computer screen all day. When wearing these glasses they eliminate headaches, eye strain, migraines, and even protect your eyes from serious damage such as macular degeneration.
The dimensions of the kids frames nighttime glasses are:
BlockBlueLight bulbs are specifically designed and manufactured to block the blue light wavelengths that will interfere with melatonin being released.
Several top lighting manufacturers have introduced nighttime bulbs that have lower blue light output and label these are "warm white", however these bulbs have not been designed with removing enough of the blue light spectrum, they still emit high amounts of blue light to still cause melatonin suppression. Only BlockBlueLight bulbs are guaranteed to be 100% blue-free.
Conventional LED bulbs are bad for us yes, but our SweetDreams Bulbs, Twilight Bulbs, And Red Night Light bulbs are not the same as conventional LEDs,
Common LED lighting you will find in most homes is bad for our health for two main reasons;
They have a very high spike in the Blue light range and are void of any of the yellow orange or red colours. This high intensity of blue light is very far from natural balanced light you find in nature, it has the ability to cause eye damage, eye strain, headaches, and migraines. It is also responsible for causing sleep disruption by suppressing the sleep hormone melationin.
Secondly Conventional LEDs produce produce flicker, while it may not be visible to the human eye, the LED lights are flashing on and off hundreds of times a second, the brain can recongise this flicker even if you cant, which can then lead to eyestrain, headaches, loss in concentration, and even damage to our eyes!
Our SweetDreams and Red Night Light Bulbs have be extensively research, designed, and manufactured to remove these harmful aspects of LED lighting;
All of our bulbs contain zero blue wavelengths, and is the only LED available that does not include the blue color spectrum at all.
All of our LED bulbs eliminate harmful flicker, providing a smooth, constant light that's better for your health!
Be very careful with party light bulbs or other standard colour light bulbs, while these appear to look orange or red, these are just coloured glass and would still most likely have parts of the blue light wave spectrum coming through. There’s no testing or science gone into removing the harmful blue and green spectrum of light.
The bulbs from BlockBlueLight are only emitting a particular wavelengths and it’s from the led chips these specific wavelengths are produced, not just be using a colored shell like the party bulbs. Our bulbs dont use a coloured shell, they dioeds have been designed to emit of targeted wavelengths. All of our bulbs are spectrum tested and and are guaranteed to have 100% no blue light.
Party or coloured light bulbs may look red or orange, but what wave lengths are actually getting through?!
Yes absolutely, we have designed these bulbs to be a general use light bulb for all areas of the home, they provide sufficient light for living areas and bedrooms, but also give off a warm, relaxing, soft light making them suitable for reading lamps and nurseries.
Because eliminating blue light at night is so important, you should use the SweetDreams bulbs in any room you or your family typically spend evening and night hours.
Ideally you would turn off your lights and keep your room as dark as possible during sleep. However, if you are uncomfortable sleeping with the lights off, we recommend using for Red Night Lights which have been designed to provide very low wattage and dim light and can be kept on while sleeping.
We currently ship from two warehouses;
All New Zealand orders are shipped from Auckland, New Zealand via NZ Post.
All Australia and Rest of the World are Shipped from Sydney Australia via Australia Post
Yes we ship anywhere in the world, we offer free shipping worldwide for orders over $99!
Please see our Shipping and Returns page for more information.
If your after your order sooner we can arrange for express shipping for an additional $6.99. Simply select the express shipping option at the checkout and receive your order overnight - 2 business days. Please note if you live in rural New Zealand or Australia this time frame is not guaranteed.
Please see our Shipping and Returns page for more information.
If your glasses don't fit or you simply change your mind on your purchase, you can return them to us for a full refund or exchange within 30 days of the purchase date. The items must be returned in the same condition as sold to you with all packaging and cases to quality for a refund or exchange
Blue light filters are a way that you can reduce your exposure to blue light. They filter out the intense blue light frequencies that are emitted by computer screens and artificial light sources. BlockBlueLight Glasses are designed to give users the chance to reduce their exposure to blue light and mitigate the effects that this intense end of the spectrum can have on our health and well-being.
Visible light is complex and is made up of varying frequencies of light. The more intense end of the visible spectrum is also the light that our eyes and bodies react the most strongly to. Blue light filtering products are designed to reduce our exposure to blue light spectrums, and permit wearers to make safe us of their blue light emitting devices.
The damage from blue light is cumulative. Most people who have spent long days in front of a computer screen will be familiar with the feeling of ‘digital eye strain’. What is happening there is a combination of focusing on a fixed distance for extended periods, and exposure to intense blue frequencies. These patterns can have a cumulative effect on the eye and cause damage over time.
BlockBlueLight products are designed to give users a way to effectively address their blue light exposure. We have developed a full range of blue light filtering and blocking glasses, smartphone screen protectors, and globes. All designed with the intent of helping our customers mitigate the effects of blue light exposure on the eyes and their well-being.
Blue light filtering and blocking glasses work by reducing the wearers exposure to intense blue frequencies of visible light that tell our body that it is time to get up and go. More and more people are turning to blue light filtering and blocking technologies to avoid digital eye strain and gain a more restful nights sleep. Look to our reviews to see what our customers are saying about their BlockBlueLight products.
Blue light filtering and blocking products are an effective way of reducing blue light exposure. A more restful nights sleep, comfort through longer sessions in front of a computer screen and a reduction in cumulative harm are all benefits of using blue light filtering and blocking products.
Sign up to hear the latest on new products, information and specials!