SUPER FIRM PILLOW QUEEN, HYPOALLERGENIC POLYESTER FILL FOR BACK & SIDE SLEEPERS No more counting sheep with this Sertapedic Super Firm Pillow! These Sertapedic Super Firm Pillows offer a comfortable way to get a good night of sleep with plenty of support. The cover is made of a soft and cozy 300 thread count cotton and polyester blend. These pillows include a 2 inch gusset to ensure maximum comfort and support. This super firm support is ideal for back or side sleeping positions. The fill is hypoallergenic, made from 100 percent polyester fill so you can breathe easy. These pillows are machine washable and dryable for easy care. Every Sertapedic pillow is designed to provide exceptional comfort.