[hardgainer]

Hi. Have a question about backlight. My wife likes to read in the evening before sleep and does it regurarly. At the moment she reads on her phone which has an adjustable backlight option so she doesn't have to use any outside light sources. Our wee babies sleep in the same room that's why it is preferably not to turn on any light. Is there any ereader that allows you to do that? Thank you very much in advance,i've looked up ereaders specs but found nothing.