Sounds like a condition called night terrors,usualy the person wakes up in a panic completely paralized and unable to move,sounds like you still have that to look forward to.
When it happens the main thing is not to panic, try and move your little finger or something like that,once you can do that yer gorrit licked, it is perfectly natural of course your brain keeps your muscles paralized as you sleep, in order to stop you acting out your dreams, tiz just a timing error, said brain is supposed to cancel the paralisis order before it wakes you up.
Of course if Drapes thunk in a few weeks he was going to be at 200 fathoms travelling at forty knotts, the night terrors might assail him again.
