I second the Casper. I have the “essential standard” with a firm-ish core and “plush” outer layer. I’ve been through dozens of pillows, this is by far the greatest pillow invention on the planet. Somehow it stays supportive in whatever way you need it, yet cradles your head and neck in a soft pillowy kiss. I have nerve damage in my neck that makes my arm numb if I sleep on my side, but not with my BFF Casper. It is pillow perfection.