to have a stiff neck after sleeping / (of the head) to touch the pillow
断袖之癖
duàn xiù zhī pǐ
lit. cut sleeve (idiom) / fig. euphemism for homosexuality, originating from History of Western Han 漢書|汉书: emperor Han Aidi (real name Liu Xin) was in bed with his lover Dong Xian, and had to attend a court audience that morning. Not wishing to awaken Dong Xian, who was sleeping with his head resting on the emperor's long robe sleeve, Aidi used a knife to cut off the lower half of his sleeve.
mythological insect that makes people doze off / (fig.) drowsiness / (coll.) person who loves sleeping / sleepaholic
接盘
jiē pán
(of an entrepreneur) to buy up a struggling business / (finance) to snap up shares sold off by others / (neologism) (slang) to take as a girlfriend a woman who was dumped by her ex for sleeping around
靴子落地
xuē zi luò dì
lit. the boot hits the floor (idiom) / fig. a much-anticipated, impactful development has finally occurred (an allusion to a joke from the 1950s in which a young man would take off a boot and throw it onto the floor, waking the old man sleeping downstairs who could then not get back to sleep until he had heard the second boot hit the floor)