I tried SSILD three times so far. The first two did not work, the first was at night before getting to sleep, so it did not have too many chances from the beginning, the second time was before an afternoon nap, and it didn't work. Last night it was the first time I tried it in the morning, after 3 hours of sleep and then 3 hours of being awake (insomnia problems), when I knew that I was probably about to finally get back to sleep. I didn't fall asleep right away, though. I remembered that it didn't matter, it could still work, and the result was that I had 4 lucid dreams in a row (so 3 false awakenings in which I realized I was still in a dream), very clear all of them, very lucid in all of them. The only downsize is that after the forth, when I finally got up, I could not remember as many details as I usually remember from just one lucid dream. However, still good recall and vivid memories.

Thanks for all your posts and explanations about this, cosmic.iron!