We use these from REI:
http://www.rei.com/product/793266?pr...:referralID=NA
They are called HeadLights which are light-weight lights you wear on your head. Yes they look strange but we have had other ebook lights and they all would cause a glare on the ebook "page" making reading tough. The angle of the light-source in the HeadLight illuminates it just right for us and allows one sleeping person to not be disturbed by others reading at night.