15 Minutes Lamp is a rather cool mix between an hourglass, a lamp, and something of a light dimmer. You can set time in increments of 15 minutes and doze off. Slowly, the sand begins to flow on the bulb and dim the light. After the set time, the bulb is covered in sand and the light cut off. The weight of the sand serves to automatically switch the lamp off as it goes dark. Designed by Hye Min Lee, Hye mi Lee and Sun Hwa Jung, the lamp was a winner at the 2013 IDEA Awards.