The one thing I noticed while using these is that my hair still looks good when I wake up. No more bed Head! This is a great set of pillow cases. They feel nice against my face, the fabric is excellent. I haven't washed them yet so can't comment on that and can't comment on the keeping cool business because it is mid December in the Northeast.
SLEEP ZONE Satin Pillowcases Cooling Set of 2 for Hair and Skin Standard/Queen 20x30 Pillow Cover (Queen, Black) https://www.amazon.com/dp/B07V9LVPT2/ref=cm_sw_r_cp_apa_i_kMR8Db1G4HF0A