FAQs


What do Swannies Blue Light Blocking Glasses do?

Swannies Blue Light Blocking Glasses improve the quality of your sleep by filtering out harmful artificial light from electronic devices that shuts down your body’s natural melatonin production and disrupts your sleep. They also stop sore eyes, headaches, fatigue and eye strain caused by excessive screen time.

How do Swannies Blue Light Blocking Glasses work?

Innovative lenses filter out blue light on the visible wavelength spectrum that has been proven to disrupt sleep. The lenses allow all other light to be transmitted, leaving you free to watch TV and use electronic devices without negatively affecting your body clock. 

When should I wear them?

We recommend wearing Swannies Blue Light Blocking Glasses any time your are using digital devices such as phones, tablets, computers or TVs for extended periods. This will prevent digital eye strain. We strongly recommend wearing your Swannies at least one before bed to stop artificial blue light disrupting your sleep. Some customers report better results putting the glasses on even earlier before bed. 

Can I wear them during the day?

Swannies can be worn at any time. They are particularly helpful in preventing digital eye strain and associated sore eyes, fatigue and headaches when working in brightly lit office environments and using digital devices for any significant period. Swannies Blue Light Blocking Glasses are UV rated and will protect your eyes from harmful glare. 

Will I notice an immediate change?

You will notice an immediate reduction in digital eye strain when using Swannies with digital devices. It can sometimes take at a few nights before you notice greatly improved sleep.

Can I get Swannies Blue Light Blocking Glasses in my prescription?

At this stage we do not offer Swanwick Nightlight Glasses in prescription lenses. However, we hope to offer a solution as soon as possible. We do however offer a fitover version of Swannies that can be worn over your regular prescription glasses. 

What is blue light?

Blue light has a very short wavelength, and so produces a higher amount of energy. Studies suggest that, over time, exposure to the blue end of the light spectrum could cause serious long-term damage to your eyes. Wavelengths are measured in nanometers (nm).

How many hours of sleep do you need?

Most adults need 7 to 9 hours a night for the best amount of sleep, although some people may need as few as 6 hours or as many as 10 hours of sleep each day. Women in the first 3 months of pregnancy often need several more hours of sleep than usual.

How long is a sleep cycle?

One sleep cycle lasts an average of 90 minutes: 65 minutes of normal, or non-REM (rapid eye movement), sleep; 20 minutes of REM sleep (in which we dream); and a final 5 minutes of non-REM sleep.

What is melatonin and what does it do?

Melatonin's main job in the body is to regulate night and day cycles or sleep-wake cycles. Darkness causes the body to produce more melatonin, which signals the body to prepare for sleep.

What is sleep disorder?

A sleep disorder, or somnipathy, is a medical disorder of the sleep patterns of a person or animal. Some sleep disorders are serious enough to interfere with normal physical, mental, social and emotional functioning. 

What is a sleeping disorder called?

In addition to insomnia, the most common sleep disorders are sleepapnea, restless legs syndrome (RLS), and narcolepsy. Sleep disorder 1: Sleep apnea. Sleep apnea is a common sleep disorder in which your breathing temporarily stops during sleep due to the blockage of the upper airways.