Sock Bun Curls

I have been seeing all sorts of great no-heat-shortcut hair curling techniques on Pinterest.  I tried one headband method, which didn't work for me, because I have to sleep with my hair in a high ponytail or bun because I wear a special sleep mask for my dry eye issues due to Sjogrene's Syndrome.  The head-band wrapped hair got all wampy-jawed (Southern/Texas term meaning all effed up) while I slept, so I ended up with some funky-kinky-half-curled-half-crimped hair as a result.

After the headband fiasco, I came across this Sock-Bun curling method and I thought - BINGO, this could work for me, so I tried it.  I followed the tutorial linked above, except I started with washing my hair and letting dry until it was slightly damp (in lieu of wetting dry hair, which seemed redundant to me).  Also, I didn't use any bobby pins, but instead covered the sock-bun in the elasticy portion on a child size sock that I cut to about a 4 inch width. This kept it pretty much in place while I slept.

This the morning, after I took off the outer sock wrap, it looked like this:

I then proceeded to take the sock-bun out of my hair, fluffed it up some and was exceedingly pleased wit the results:

I an also pleased with the fact that the curls have stayed pretty much intact all for a good portion of the day.  I declare this a Pinterest trick/Youtube video experiment success. 

Have you tried any of the non-heat curling methods that are, seemingly, everywhere these days?  What was your experience?