So I'm not really the type to have nightmares, and as soon as I do, I realize I'm dreaming and just wake up completely. In October, I had a big physics exam. I took a nap before, and had a nightmare. I decided to wake myself up. I thought I did, until all of a sudden reality was behaving strangely, and I knew I was still dreaming, and went right back into the nightmare, even though I knew I was dreaming the whole time. I couldn't pull myself out of the nightmare until my alarm went off. I thought it was strange until I took a nap before my next physics exam, and the same thing happened. Other than that, I am completely nightmare free, and mostly dream free. I'm a very very heavy sleeper! I need 3 alarms to get up in the morning
Oh, and the jasmine does actually work for sleep and relaxation. Give it a try!