Sleep comes in 4 stages, you have your first 3 NREM, or Non-REM, stages, followed by your REM stage. We only dream during REM sleep, and if you enter REM sleep, you'll know it. During the second stage of sleep, NREM-2, We see something called "Hypnic Myoclonia," you may have heard them referred to as, "Myoclonic jerks," before. Basically what WscorpioD said, normally accompanied by a sensation of falling. Have no fear though, these jerks are naturally occuring, and shouldn't keep you awake, just try to ignore them and you should be good. Hope this helped |
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"Be patient, for the world is broad and wide." -Shakespeare
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