How many times it has happened that you get out of the bed late night to go to the washroom or drink water but for the reason that it was too dark, it was really difficult to find your necessary stuff like drinking glass, water bottle, telephone handsets, specs or you can say your slippers. Well, “Day & Night Marks” by Sun XIaowen, Yu Guangwen, Ding Meiyuan, Du Renhua and Qiu Song is here to help you. It’s one efficiently smart idea that lets you find your stuff in the dark! Day & Night Marks comprises a series of products to let you find your stuff when you wake up late night. What exactly happens is the Day & Night Marks using luminous materials absorb light during the day and produce light at night thereby helping you find your things at night.