awake

verb [vi. 不及物动词]（使）醒来，唤醒；唤起，激发起

Someone who is wide awake is fully awake and unable to sleep. ^{毫无睡意的 •  I could not relax and still felt wide awake.  我不能放松下来，仍然觉得没有一点儿睡意。}