Available in four sizes, retails from $4,541.21 (including bonus pillow and mattress protector) at Sealy.

Retails from $3,177 (including bonus pillow and mattress protector) at Simmons and authorised retailers.

Available in three thicknesses and four sizes, retails from $3,699 at Tempur and authorised retailers.

Available in four comfort layers and three fit covers, retails from $2,990 at King Living.

Available in four sizes, retails from $3,079 at Ashley Furniture.

Retails from $1,272 at Simmons and authorised retailers.

Available in four sizes, retails from $3,952.43 (including bonus pillow and mattress protector) at Sealy.