Bullmiracoilreg reactive springs give tailored comfort and support whatever your shape and size bullhead to toe springs distribute body weight ensuring partner movement doesn39t disturb your sleep bulledge to edge springs for maximum sleep space bullacupressure layer stimulates acupressure points on the back for relaxing sleep bullcomfortable and breathable silentnight ecocomfort fibrereg scientifically proven to keep you cooler bullsoft knitted fabric lid with a quilt