The first thing that amazed me about this pillow was how cool the material felt. It's cool to the touch, as if it has been in the fridge. I overheat easily at night so this cool touch was an instant must-have. I'm still kinda mind-blown about it.

I sleep on my sides and I often have my arm under my pillow. Other pillows make this somewhat uncomfortable. This pillow actually conforms to me and keeps my spine straight while I sleep. I've never had a more comfortable pillow in my life. It's definitely worth the money.

I preferred the Rain 3.0 over the Lightning 2.0. Both were comfortable but the Rain is better for me as a side-sleeper.