King size, firm Organic latex by Natura organic wool topper The depth is 6 inches plus a 1 inch wool topping. comes with slats Great condition, no bulging, these mattresses last at least 20 years without losing their shape. Purchased for about 5k 7 years old...these last for at least 20 years Top 10 reasons to Sleep on Latex: Contours to the body's natural curves Ventilated open cell structure promotes air circulation and reduces moisture build up 300% more resistant to dust mites than other types of foam Naturally antimicrobial and hypoallergenic Reduces stress on pressure points Returns to its original shape night after night Choice of firmness option Exceptionally durable - does not break down or need to be flipped Absorbs motion so partners can sleep together more peacefully Naturally good for you 100% Wool Fiber Joma Wool is a mechanically crimped wool. It is beneficial for bedding uses, as the wool cushions and softly supports, diffusing pressure points and molding to body contours. Wool helps to regulate body temperature Wool is animal-friendly Wool is hypoallergenic Wool Promotes blood circulation Wool absorbs 1/3 of its weight in moisture without feeling damp Wool is fire-retardant