anti-sleep       
adjective (also antisleep) uk/ˌæn.tiˈsliːp/ us/ˌæn.taɪˈsliːp/
 抗睡眠
designed to prevent someone from sleeping
  They have developed an anti-sleep alarm to warn drivers against fatigue and drowsiness. 他们开发了一种抗睡眠警报,以警示司机抵抗疲劳和困倦。 
 The anti-sleep drug is designed for narcoleptics, that is, people who fall asleep at random times with no warning. 这种抗睡眠药物专为嗜睡症患者设计,即在没有任何警告的情况下随机入睡的人。 
 - More examples
 - Here's another great anti-sleep device which should appeal to last-minute exam crammers.
 - The development of the anti-sleep device for drivers could be key to preventing road traffic accidents.
 - The troops were the first to try out an experimental anti-sleep drug.