cold sweat
(n.) The act of sweat when asleep, upon waking up the feeling of being "cold".Usually someone has cold sweats when they are anxious before going to bedwoke up in a cold sweat
To wake up in a cold sweat is to wake up suddenly in the middle of the night due to the remembering of an anxious moment in your life.
Example:
Man last night night I woke up in a cold sweat remembering how those gangsters last summer almost decided to off me!
Man last night night I woke up in a cold sweat remembering how those gangsters last summer almost decided to off me!