High quality 312 bonnell coil provides resilient support base * 2 oz densified polyester fiber topper adds firmness and support * Heavy-duty resinated pad with a specialized mesh woven back keeps mattress durable * Breathable with two screened brass vents at the head of mattress to keep patient cool and expel stale odors * Dimensions: 80 x 36 x 6 * Weight capacity: 300 lbs * Five-year warranty on spring * One-year warranty on manufacturer cover *