Komrij's Patentwekker (Komrij's patented alarm clock) is a book of humorous poetry by Dutch author Gerrit Komrij, first published in 1974. The book contains four poems which outline a fictional invention—an alarm clock that consists of a burning candle inserted in the sleeper's anus, containing markings for each hour to be spent sleeping. The deeper the candle is inserted, the earlier the sleeper rises; the inventor acquires a patent on his idea. The four poems are formalist, like the rest of Komrij's poetry. They have three quatrains each, rhyming a b a b in pentametric lines.