Ive always used feather pillows, not just down tho, a combination is best, cuz they are cooler to the touch and not SOOO fluffy. Unfortunately new GF seems to have allergies to feathers so I have switched to a 'down alternative' microfill type pillow and I dont like it nearly as much, but still better than standard pillow, which I cant stand at all. I hate firm/thick pillows and I like to have my head relatively flat with my body, sometimes I dont even put a pillow under my head, but thats a little TOO flat..