1 Gimenez, M.C., Hessels, M., van de Werken , M., de Vries, B., Beersma, D. G. M., & Gordjin , M. C. M. (2010). Effects of artificial dawn on subjective ratings of sleep inertia and dim light melatonin onset. Chronobiology international, 27(6), 1219-1241.doi:10.3109/07420528.2010.496912
2 Philips WUL Claims Report_US Physicians_Recontact_071620 N=16, Pages 6,13. 59% of Physicians and pharmasicists recommend Philips wake-up lights for establishing a healthy sleep and wake routine
3 SET Philips Wake-up Light 2012 Metrixlab (N=78). 44% of users say that Waking up with the WUL gives them energy throughout the day.
4 vs the next leading brands Edge by Ascential, Light Therapy 1P + 3P 2020 Market Share Estimates for Jan 1 2020 – Aug 30 2020
5 Danilenko K. et al. (manuscript in preparation). Dusk of Philips Wake-up lights help people to fall asleep more peacefully.