
Casper has released a smart night light called Glow, designed to help people fall asleep and improve their sleep quality. The product is a wireless, gesture-controlled LED lantern that dims or brightens over 45 minutes to ease the user into a deeper sleep or gently wake them up. The light is self-dimming and produces a warm hue of 2700k, which means it emits little to no blue light, which has been shown to disrupt natural sleep rhythms. The Casper Glow app allows users to create and manage Glow groups, schedule wake-up times, and customize the settings.
| Characteristics | Values |
|---|---|
| Purpose | To help people sleep better |
| Light colour | Warm hue of 2700k |
| Light brightness | Self-dimming |
| Light type | LED |
| Control | Touch, gesture, and app |
| Timer | Adjustable from 15 to 45 minutes |
| Price | $89 for one, $169 for a two-pack |
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What You'll Learn
- The Casper Glow Light is a smart night light that helps you fall asleep
- Blue light from phones or screens interferes with falling asleep
- Red light may induce sleepiness and increase melatonin production
- Warmer hues of light, such as yellows and oranges, are preferable before bed
- Glow gradually dims over 45 minutes to ease you into a deeper sleep

The Casper Glow Light is a smart night light that helps you fall asleep
The Casper Glow Light has a Sleep Mode that automatically turns the light on as your bedroom gets dark. It emits a gentle, soft light that does not disrupt your sleep. The optional motion sensor offers light whenever you need it. The light is also designed to be portable, so you can take it with you wherever you go. It features quick and easy wireless charging on its base for wireless use night after night.
The Casper Glow Light can be used without the app, but the app offers additional customisation features like syncing multiple Glow Lights, customising light settings, and scheduling a wake-up time. The app is currently only available on iOS devices, with no plans to release it on Android.
The Casper Glow Light has received mixed reviews on Amazon. Some customers have praised its functionality and design, while others have complained about its durability and reliability.
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Blue light from phones or screens interferes with falling asleep
Blue light from electronic devices such as phones and screens can interfere with falling asleep and affect the quality of rest. This is because light plays a critical role in regulating our sleep and wakefulness. Our body's natural sleep-wake cycle, also known as the circadian rhythm, responds to different light colours. When it is light outside, the body knows it is time to be awake, and when it is dark, the body gets ready for sleep.
Blue light, in particular, has been singled out as a leading cause of sleep deprivation. Blue light from phones or screens can signal to the body that it is time to wake up, preventing sleep if viewed at night. Blue light has also been shown to have the most significant impact on mood. Research has shown that light receptors in the eye that affect the circadian rhythm are particularly sensitive to blue light.
To prevent the disruption caused by blue light, one can block blue light in the evening. Warmer hues of light, such as yellows and oranges, are preferable to cooler light before bed. Light therapy may also be a treatment option for those with insomnia, circadian rhythm sleep disorders, seasonal depression, or jet lag.
Red light, in particular, has been shown to improve sleep quality and increase melatonin production. Exposure to red light during sleep and upon waking can reduce the likelihood of feeling tired and disoriented in the morning. A 2017 study on mice found that red light at an intensity of 10 lux or higher had the potential to induce sleep.
In summary, blue light from phones or screens can interfere with falling asleep by disrupting the natural sleep-wake cycle. To promote better sleep, it is advisable to limit exposure to blue light before bed and opt for warmer hues of light, such as red, orange, or yellow.
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Red light may induce sleepiness and increase melatonin production
Light plays a significant role in our sleep cycle. Research has shown that exposure to certain colours of light can improve sleep, while other colours can disrupt sleep. Blue light, for example, has been shown to be disruptive to natural sleep rhythms. Blue light from phones or screens can interfere with falling asleep and the quality of rest. It can negatively impact melatonin levels and promote wakefulness.
On the other hand, red light may induce sleepiness and increase melatonin production. Research has shown that exposure to red light can improve sleep and increase melatonin production. Red light has a lower colour temperature than regular sunlight, making it ideal for sleep. It does not make our brains respond as much to its wavelengths, making it a good way to transition from daylight to night without interrupting the sleep cycle. A 2017 study on mice found that red light at an intensity of 10 lux or higher had the potential to induce sleep. However, it is important to note that if the red light is too bright, it can suppress melatonin production.
In addition to red light, other warm colours such as yellow and orange are better for preparing the mind and body for sleep. These colours give out little to no blue light and can help create a cosy and ambient mood in the bedroom. Warmer hues of light are preferable to cooler light in the hours before bed as they signal to the body that it is time to wind down and relax.
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Warmer hues of light, such as yellows and oranges, are preferable before bed
Light can have a significant impact on sleep quality. While a dark room is best for sleep, in the hours before bedtime, it is advisable to opt for warmer hues of light, such as yellows and oranges, over cooler lights, like blue light from electronic devices. This is because light plays a crucial role in regulating our sleep and wakefulness. Warmer hues signal to our bodies that it is time to wind down and relax, while cooler lights can make it harder for the body to transition to a sleepy state.
Blue light, in particular, has been identified as a leading cause of sleep deprivation. It has the most significant impact on mood, followed by white light. Exposure to blue light can prevent sleep and negatively affect melatonin levels, which are crucial for regulating the body's natural sleep-wake cycles. On the other hand, warmer colours like yellow and orange have little impact on the circadian rhythm and can increase melatonin production, making them ideal for preparing the mind and body for sleep.
Red light has also been found to improve sleep quality and increase melatonin production. It has a lower colour temperature than regular sunlight, making it perfect for transitioning from daylight to night without disrupting your sleep cycle. Amber, a combination of red and orange light, is another warm and soothing colour that promotes a good night's sleep.
To enhance your sleep experience, consider using a glow light, such as the Casper Glow, which provides a warm hue of 2700k, emitting little to no blue light. This self-dimming lamp gradually dims over 45 minutes, easing you into a deeper sleep. You can also adjust the brightness manually by twisting the lamp to set the desired ambient mood in your bedroom.
In conclusion, when preparing for sleep, it is advisable to favour warmer hues of light, such as yellows and oranges, over cooler lights like blue light. This simple adjustment can help signal to your body that it is time to relax and prepare for sleep, promoting a better night's rest.
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$24.99 $29.99

Glow gradually dims over 45 minutes to ease you into a deeper sleep
Casper has designed the Glow Light to help people fall asleep. It is a wireless, gesture-controlled LED lantern that dims or illuminates over 45 minutes to ease you into a deeper sleep. The light is self-dimming and gives off a warm hue of 2700k, which means it emits little to no blue light, which has been shown to disrupt natural sleep rhythms.
The Casper Glow app allows you to control the settings of your Glow light, either as a group or individually. The timer is adjustable inside the app, anywhere from 15 to 45 minutes. The app also allows you to schedule a wake-up time. The light will gently illuminate before your desired wake-up time, making it a perfect bedtime countdown clock.
The Glow light is designed to sync with your circadian rhythm and promote healthier sleep patterns. Circadian rhythm is your body's natural sleep-wake cycle, which is largely controlled by the hormone melatonin. Light plays a critical role in regulating sleep and wakefulness. Warmer hues of light, such as yellows and oranges, are preferable to cooler light, like blue light, in the hours before bed.
Blue light has been found to have the most significant impact on mood, followed by white light. Exposure to blue light can prevent sleep and negatively affect melatonin levels. Red light, on the other hand, may help stimulate sleep and increase melatonin production. It is thought that colours close to red on the light spectrum may help with sleep.
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Frequently asked questions
Glow light is a smart night light designed to help you fall asleep and improve your sleep quality.
Glow light produces a warm hue of 2700k, which means it emits little to no blue light, which has been shown to disrupt natural sleep rhythms. The light gradually dims over 45 minutes to help you fall asleep gently.
Warmer hues of light, such as reds, oranges, and yellows, are better for preparing the body for sleep. These colours stimulate melatonin production and promote sleepiness.
Cooler colours of light, such as blue and white, should be avoided before bed as they signal to the body that it is time to wake up and can prevent sleep.
The Casper Glow Light costs $89 for one or $169 for a pack of two.









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