Wavy Hair question

Those tips above are very effective - I've tried them before for achieving nice thick waves.

If you can do thermal application, I also recommend triple barrel curling iron which also gave me gorgeous waves in less than 20 minutes. People have raved and complimented on my hair and they thought I had a body wave and I told them, nope, just triple barrel curling iron. They were skeptical and then they found out about it. They were surprised. This is great for me because I can go straight and then wavy hair the next day, and go back to straight hair again. Of course, I'd not recommend using it too frequently (heat damage, like blow drying, so the other tips above are better for long term). :)

I would try to shampoo your hair at night. While it is wet apply gel, then braid it into 4 big braids. Sleep on it, when you get up take it down and voila wavey hair.

Good Luck!!!