Does your body wake up in bits?

Does your body wake up in bits?
This morning I realized mine does. First my brain wakes up leaving the rest of my body heavy. This realization helps me understands my Sleep paralysis episodes much more. For you who don’t know, sleep paralysis is, it is a sleep disorder in which your brain wakes up before you body and during this moment sufferers feel as if they are paralyze.
Today when I woke up, I was lying on my tummy, when my alarm went off my lower extremities felt heavier than my upper but consciously I felt awake and alert, so I hit the snooze button. After a few minutes I could move my midsection with ease, but my legs were still heavy, I hit the snooze again, final before the snooze went off again I was able to turn to my side and with my leg feeling light, I got up..
what a consciousness.