Remember water mattresses? God, those were awful. Absolutely the worst. But there is some logic behind sleeping on something that’ll contour to your body while still providing support. It’s just that it’s not all that great for your whole body. Let me introduce you to the world of water pillows.
from Lifehacker https://ift.tt/2X8zU2q
https://ift.tt/3hPFpuB