That extra alertness can make it harder to fall asleep, potentially increasing the chance of another twitch.
The more you focus on the sensation, the more noticeable it can become.
Lack of Sleep May Also Play a Role
Being severely sleep-deprived is another common factor associated with sleep starts.
When you consistently go to bed too late, wake up too early, or experience fragmented sleep, your nervous system may become more vulnerable to unusual sensations during the transition into sleep.
A busy schedule can make this worse.
You might feel exhausted enough to fall asleep quickly, but your nervous system may not be transitioning into sleep in a perfectly smooth way.

This is one reason why hypnic jerks may seem more common after several nights of poor sleep.
Improving your sleep schedule may reduce the frequency for some people.
Could Caffeine Be Making It Worse?
Your evening coffee, energy drink, or strong tea may also be worth considering.