Mark-my-time has introduced the digital e-reader light , an innovative product designed to help students track required reading time on any e-reader device. It features a countdown timer with alarm and auto light shut off to alert readers when their time is up. For those tracking time over multiple sessions, a cumulative reader timer stores time up to 100 hours. A back-lit display makes the product ideal for bedtime reading. The digital e-reader light will be available in late summer 2012.