I'm a hot sleeper and my wife is a cold sleeper. This has presented us some issues in terms of the products we purchase. Either I'll like something and she won't, or vice versa. We read up on Outlast and decided to bite the bullet and purchase everything, including pillows, a mattress pad, sheets, and a new comforter. When we laid everything out and went to sleep that first night, the differences were apparent. Everything is cool to the touch, and the sleep system does a great job of taking the excess heat away so that I can enjoy a night of sleep without constantly shifting my body or flipping the pillow. My wife says that the system stays at a good temperature for her and doesn't cool down to the point of making her feel cold. Needless to say, we're both very impressed. We already have an adjustable bed due to our different needs for firm vs soft sleeping, and these items finished off exactly what we needed.
This pillow is worst I've ever purchased. The pillow didn't do what the description said online. It's lumpy and your head falls to the flat middle part of pillow. It was suppose to keep you cool and didn't, I sweated more than I did before. Sorry I purchased it.