Thread: Exercising while sleeping?

Sleep Paralysis prevents you from physically acting out your movements during sleep. This means two things: (1) You can't fatigue your muscle as if in a gym, nor give it progressive resistance. And (2), given that SP prevents movement, then it follows that your movements during dreams are sending and receiving signals from the motor cortex. That is, the motor cortex interprets dream movement as real movement.

So theoretically speaking, practising a particular movement when asleep should result in the formation or refinement of muscle memory as if you were awake. However, this also means that bad practice during sleep can be detrimental to progression.