3 doctors weighed in:
Why does my whole body jerk before I fall sleep?
3 doctors weighed in

Dr. Allen Seely
General Practice
2 doctors agree
In brief: Hypnagogic 'jerk'
70% of people have had these: a hypnic jerk, hypnagogic jerk, sleep start, or night start, is an involuntary myoclonic twitch which occurs during hypnagogia, just as a person is beginning to fall asleep, often causing them to awaken suddenly for a moment.
They are often accompanied by a 'falling sensation' possible causes are: anxiety, caffeine, stress, and strenuous activities in the evening.

In brief: Hypnagogic 'jerk'
70% of people have had these: a hypnic jerk, hypnagogic jerk, sleep start, or night start, is an involuntary myoclonic twitch which occurs during hypnagogia, just as a person is beginning to fall asleep, often causing them to awaken suddenly for a moment.
They are often accompanied by a 'falling sensation' possible causes are: anxiety, caffeine, stress, and strenuous activities in the evening.
Dr. Allen Seely
Dr. Allen Seely
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