Miss Cellania at Mental Floss offers many tips to help you doze off unobtrusively, some (propping your head) more helpful than others (eyelid tape).

Mental Floss的莎莉妮小姐会为你提供一些不引人瞩目的打瞌睡的方法，有些(撑着头)比另外一些(戴眼罩)更有用。

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Mental Floss, one of my favorite sites, has a namesake that conjures brain cleansing.

ENGADGET: This is the Modem World: Digital junk food