I see, thanks for the explainer. Guessing based on the comments it must be somewhat common for this sensation to happen to people at least once in their life. The only time I had an odd sensation in bed is when I actually fell out of my bed, it was very disorienting but the difference is I actually fell out of my bed.

edit: spelling

[–] dwokimmortalus@lemmy.world 2 points 1 year ago (1 children)

Two to three times a year for me. It's always super jarring. The jump in heart rate suddenly feels really unsettling.

[–] Angry_Maple@sh.itjust.works 1 points 1 year ago

It was really annoying at one point last year, it was like my brain was playing a joke on me.

It startled me like three times in one night. When it happened a fourth time, it was just annoying.