One night is not enough to form the clearest idea, but I did experience some interesting results.
Usually I wake up about 3 times per night to go to the bathroom and/or drink some water, then I have the habit of putting my headphones on and watch some videos to fall asleep again.
Last night I woke up twice, but for very unusual resons, once because there was a mild earthquake (5.2°), the other because my girlfriend had a very noisy nightmare so I confort her while she slept. Both times I fell asleep again without even thinking about my headphones or watching a video… immediately went back to sleep.
I crashed hard last night… I feel I spent a lot of time in deep sleep, I had a lot of dreams, they were very long, very vivid and meaningful.
Of course part of the dreams had to do with money (thanks EOG)