Seroquel helped my depression and as an added bonus it helped me to fall asleep

I am on 400 mg now and I notice about half hour after I take it I can't stay up anymore.
And it's not scary like Ambien where I would have sleep paralysis and wake up and everything would be all weird. I get a good nights rest.
But it also could just be that I was feeling more intense things when I was trying Ambien.
Seroquel has worked for me the best.
It's always so hard to tell with someone who's depressed though because how do you know it's the meds or you?