Startled

You know that moment were you're just falling asleep, 
curled up in a cocoon of pillows and blankets, 
seconds from dreamland ... 

and then your 100 lb Labrador Retriever,
who is taking up half the bed, 
suddenly starts chasing rabbits in her sleep, 
thereby shaking your entire queen-sized bed?  

Add in some strange barky sound affects 
and a strong startle reaction and 
yep, suddenly you're wide awake again.

Yeah, that.