Z Zoned DOUGH Memory Foam Pillow with Tencel Removable Cover - High Loft - Firm - Queen DOUGH Formula creates a softer, doughier memory foam With smaller holes on the outside and larger holes toward the middle, our unique ZONED TECHNOLOGY provides optimal support and comfort Offers superior pressure relief and can eliminate sleeping pain Open cell technology promotes increased breathability & maintains a comfortable sleeping temperature Tencel removable coverwith superior moisture-management properties aids in optimal sleeping temperatures