️ ️COOL AND COMFORTABLE WHILE YOU SLEEP ️ ️ Our revolutionary gel-infused memory foam topper is engineered to optimize air flow and reduce trapped body heat. What Mattress is Most Popular? We researched many different brands from the big names to new upstarts. While we focused on the most popular mattress types, innerspring and memory foam, our guide showcases the best and worst that the mattress industry offers. .