A few nights ago, I had that fascinating Dream involving myself inside an airplane where I had just discovered a section of the aircraft outfitted with real, comfortable beds. Since it appeared to be a long-haul flight, I was lucky enough to find an empty bed and slipped inside it, and instantly fell asleep.
That dream seemed to have lasted a long time into my night and eventually I woke up (still in my dream) because I felt an Urge to go pee, but was afraid to abandon the bed as I had to reach the toilets and subsequently potentially lose that precious resting spot.
So I held up the best I could and that dream kept on lasting and covered, it seemed to me, the entire night. During the two subsequent nights, I used the image and feelings I remembered from that dream (except the urge to pee) and I felt it markedly improved my general quality of sleep.
I might be on something good, who knows?