Ergonomics comfort

Comort-http://www.google.com.sg/imglanding?q=alarm%20clock%20bright&imgurl=http://www.instructables.com/image/FHZ42LMFRBPY2IZ/This-alarm-clock-was-simply-too-bright.jpg&imgrefurl=http://www.instructables.com/id/DIY-Your-Life/step15/This-alarm-clock-was-simply-too-bright/&usg=__hi2CJdHIlibRWiM3WfLqLpC6dYs=&h=375&w=500&sz=19&hl=en&sig2=zdnpSFVRapkZBE67JkYVCg&um=1&itbs=1&tbnid=UCqSEek8fLpWvM:&tbnh=98&tbnw=130&prev=/images%3Fq%3Dalarm%2Bclock%2Bbright%26um%3D1%26hl%3Den%26client%3Dfirefox-a%26rls%3Dorg.mozilla:en-US:official%26tbs%3Disch:1&ei=aJlHTN2xGoHuvQP74Zy9Ag&um=1&client=firefox-a&rls=org.mozilla:en-US:official&tbs=isch:1&start=0#tbnid=UCqSEek8fLpWvM&start=0

1. Comfort: E.g. Alarm clock display — some displays are harshly bright, drawing one’s eye to the light or keeping one awake when surroundings are dark, especiallly the elderly's.