Eli & Elm Everyday Memory Foam Pillow for $104: Compared to the latex version below, the memory foam version feels lumpy. Saatva Graphite Memory Foam Pillow for $165: This model is slightly cooling and has a fluffier feel compared to more sinkage-style memory foam. Sijo FlexCool Memory Foam Pillow for $80: This pillow with a cooling nylon cover comes with a bag of shredded memory foam to adjust the loft to your liking. Buffy, for example, lists a standard size for its pillows, but they're 28 inches long, making those pillows a super standard size. Memory foam: Memory foam is popular since it can “remember” its original shape, letting it return to its previous form once your head is off the pillow.