I use this pillow and have no overheating issues when sleeping. This pillow is super adjustable to your liking too!
New Bamboo Memory Hypoallergenic Queen Oreiller 18 x 26 inch Pillow https://www.amazon.ca/dp/B01C6Q65M2/ref=cm_sw_r_cp_api_i_bkdmFbJWN4W3J
Bamboo pillow! I bought mine from Amazon and it is on sale today.
New Bamboo Memory Hypoallergenic Queen Oreiller 18 x 26 inch Pillow https://www.amazon.ca/dp/B01C6Q65M2/ref=cm_sw_r_cp_api_i_Fy0.Eb6YJ0MAH