It was nothing but a sleepless night for many Twi-hards who caught the midnight screening of “Eclipse” Tuesday night, but not for the obvious reason. The teaser trailer for the much-anticipated “Paranormal Activity 2″ debuted preceding “Eclipse” and it’s clear that once again, we’re going home with nightmares.

“Paranormal Activity,” the supernatural thriller by first time director Oren Peli, cost him only $15 K to make, but made over $36 million. It’s been compared to cult classics like “The Blair Witch Project,” and made this amateur director a star.

The trailer for the sequel starts out with a clip from exactly where the last movie left off, reminding audiences just how terrifying the horror flick was.

The next scene is a young child’s room. A baby sleeps alone in her crib as a mobile turns quietly above. A dog rests on the floor. Loud, thumping footsteps can be heard in the distance.

Clips of the rest of the house flash across the screen. Pots and pans in the kitchen are touched and moved by some invisible force. A rocking chair creaks as it glides back and forth, yet no one sits in it.

The loud, thumping footsteps can still be heard, increasing in volume.

Suddenly, the dog is alerted, it jumps up and begins to bark just as a dark, shadowy figure appears in the doorway. The baby is missing from her crib. The text “Paranormal Activity” flashes across the screen, and the trailer is over.

The teaser alone is enough to cause nightmares. It is suspenseful, tense, and pokes at one of human kinds weakest points: babies. The vulnerable child alone in her room causes panic to audiences.

What is so interesting about this trailer is that it, like the original, is relatively simple. It employs no music and opts, instead, for white noise and the film’s authentic audio. With no distracting music and fancy editing, viewers are focusing only on what they see.

The static, choppy editing of both the original movie and the trailer create an air of suspense. Just as you prepare yourself for something to jump out at you, nothing happens. Then, when you least expect it, you’re hopping out of your chair with goosebumps on your arms because you’ve been so surprised by something terrifying.

The teaser for “Paranormal Activity 2” reveals very little about the plot of the frightening film—all we know is that it, apparently, involves a baby, more phantoms, and a dark, shadowy woman-figure (presumably the wife again).

We’re confident that Peli will create another suspenseful, horrifyingly scary thriller.

If “Paranormal Activity” is any indication, we can expect that the sequel will definitely haunt audiences for weeks after seeing the film.

“Paranormal Activity 2” will hit theatres October 2nd, 2010.