In the sticky summer months, lots of people pull out the bamboo tiled mats for their beds. They allow for some air to circulate, and the tiles remain cool to the touch no matter the temperature. It comes in a huge “rice bag.”
This is the mat I bought for my husband’s side of the bed.
I find that they pinch me, so I prefer a soft mattress, but my husband says the bamboo tiles are wonderfully cool and comfortable. To each his own. I’m happy because if he‘s cooler that means that we can compromise on a slightly warmer temperature on the air conditioner.
Here’s a close up of the mat. Thick plastic cords hold it all together. It’s quite amazing how the things we first marveled at seven years ago when we first got to China (such as sleeping on bamboo tiles) are now a part of our daily lives.