Alright since a lot of people here have cats I'm gonna ask wtf is this.

Recently my cat started having more dreams then usual. By dreams I mean he shakes during sleeps and makes noises and whatnot. That's all fine. But now sometimes he's chilling on say the computer screen not too sleepy just chilling. And suddenly it's like ****ing BAM!

His head drops down immediately and hes asleep. Why is that? And it's really scary, he's there looking at me and and then suddenly it's like he drops dead right infront of you.