Description Overview Uses 100% polyester denier 15 x 2" long. The optimum product is a mattress 75" long x 25" wide x 4" thick, weighing 6.5 lbs. Fiber Components 15% to 20% polyester bicomponent at $2.00 per kg. The weight of the mattress would be 2.95 kg x 1.60 = $4.72 cost per mattress. Shipping 600 units fit into a 40 foot high cube container.