I received Sertapedic Super Firm Pillow and I'm loving it. The cover is oft 300 thread count cotton/polyester. You can defiantly throw these in the washer and dryer. The pillow includes a 2-inch gusset to ensure maximum comfort and support. These pillows are super firm support is ideal for back and side sleepers. I can't tell how much its help with my back and side sleeping. I have less wakes up during the night. I will definitely be purchasing more of these for my other bedrooms. Also, the pillow comes with quality is assured with a 3-year manufacturer's warranty if purchased in the US. I would recommend these pillows to anyone who wants to enhance their night sleep, it's well worth the price.