You do not have to watch both videos, but they each have something to offer as far as tips, techniques, and general information goes. I apologize that I could not find any videos that were shorter in length. I tried. Feel free to skip through some of the nonsense parts and go straight to the meat of the videos. You will not be missing much. I used more of the techniques from the first video, but I did have to use clips (actually I used bobby pins), like the second video suggested, to keep things in place.
I wrapped last night before I went to bed. Yesterday was an unusual day for me in that I washed my hair and did NOT wear it curly (Gasp of horror!). Instead I put it up into a french braid so that by the end of the day my hair (of which I have A LOT) was still slightly damp in the center. I proceeded to wrap my hair with it being damp in places.
When I woke up this morning, I took down my hair and found that it had straightened considerably. However, I still had some waves on the left side of my head (I had wrapped my hair going from right to left, so clockwise). Since I happened to have some time where I didn't have anyplace to be, I went ahead and re wrapped it going in the opposite direction, so counter clockwise. I kept it wrapped for a few hours (2-3 hrs not sure) and then took it out. The left side was MUCH straighter this time, although I did have a few kinks from the bobby pins. I took those few pieces that were kinked and straightened them out with my flat iron. I know, I know...it was not totally heat free, but hey this was my first time. :)
Below are pictures of how it turned out. Try it out yourself and let me know how it turns out. :) P.S. I slept fine. It was no different than wearing my plopping towel to bed.