What Evidence Is There That Sleep (Previously Night) Swannies Work?

At Swanwick, we focus on evidence informed design. Our Sleep Swannies are developed to reduce specific wavelengths of blue light associated with evening light exposure.

Our lenses undergo independent testing to verify their spectral filtration performance and ensure they block the intended blue light ranges.

Sleep Swannies have also been evaluated in independent research examining the effects of reduced evening blue light exposure on sleep related outcomes and next day performance measures. These studies reported improvements in certain sleep related factors when blue light exposure was reduced in the evening.

Further details about the research, including study summaries and references, are available on our science page at swannies.com/science.

You can also view information about a study published in the Journal of Psychology via the press release linked on that page.