The holy drowse. The big nod. The winning snooze. If there's one friend out there who'll always be by your side, it's sleep. She can be the most loving of companions - gentle, caring, helping you get over hangovers. She can also be the most cruel mistress - giving you nightmares, getting you late for work, and generally just turning you into a zombie. Whatever your relationship with sleep is, these memes will definitely feel familiar.