Yes, I watched SNL on Hulu this afternoon - so I was wide awake.
But it was still a very quick joke - during the weekend update portion I believe.
The first part was about Amazon's new Kindle which let you connect instantly with customer support... then this was followed up by the Nook "trashing".
Saw this more as a comment on the way the two parent companies are headed rather than specific love/hate for the product lines.
So no, you weren't dreaming!