First time in years I have not woken up sweaty. That alone is worth the cost. I wake up at the same time every morning without an alarm clock, something I have not done since the military.
My 18 month old is currently in a half body cast and can only sleep in one position, which makes for a very cranky, sweaty, miserable kiddo. This pillow is awesome!! Keeps her cooler, less sweaty and definitely happier during the night.