Sweet Home Collection Hypoallergenic Bamboo Memory Foam Pillow with Carry Bag (2 Pack), Queen Bamboo/Polyester Imported Temperature-smart memory foam responds to body heat and movement, reshaping to distribute body weight and relieve pressure points to improve circulation Resistant to dust mites, naturally antimicrobial Thickness: 7 Density: 4 Pound Please fluff them up by Hand and break up the foam or toss in dryer on low for 3-4 minutes, allow up to 72 hours to fully expand