Review (3/5): I wanted to love these...
I really did want to love these. I had to cut off a bunch of hair after a bleach accident, and I HATE having short hair, so I've been curling it just to make it a little less awful. I obviously don't want to use heat when I'm trying to nurse my hair back to health, so my only real option is sleeping in curlers. Foam rods make great curls, but they are horribly uncomfortable, and my hair is too slippery for rag curlers when it's this short. These looked like a happy medium.
These are pretty easy to use - they roll well, and the wires keep them in place pretty well. They are much, much more comfortable to sleep in than foam rods. I understand that they have to be squishy to be comfortable; however they are just too small! I tried them every night for two weeks, and I never got the curls I wanted. They almost always ended up much too tight, except when I tried rolling larger sections, which ended up really uneven - tight in places and barely curled in others. I'm going for a defined curl, not soft waves, but these were ridiculous.
I ended up removing the foam and replacing it with cut-up foam rods, which was a slight improvement over just the foam rods. I'm currently testing (second night) foam rods that are very big but made of super squishy, comfortable foam. If they don't work, I'll go back to the hybrid of these and fosm rods til I find something better, do they aren't totally worthless, but I wouldn't buy them again.