So be prepared to dig deep when shelling out initially, but once you’ve done so you can rest easy knowing that your new latex mattress will be with you for a long time. On average, a zenhaven latex mattress weighs around 130-135 pounds.However there are pros and cons of latex mattresses, and the biggest drawback is the price: these are expensive compared to hybrid, innerspring and memory foam models. Two brands worth considering are the Saatva Latex Hybrid and Zenhaven, the latter being a flippable, 100% talalay mattress with an industry-leading lifetime warranty and generous 1-year trial period/return policy. Editor's Note: If you are looking for an incredibly comfortable, supportive and durable mattress, then a latex mattress is an excellent option. This hefty design yields exceptional performance, evidenced by its customer satisfaction rating, and gives Zenhaven mattresses great support and body-contouring properties. In summary, Zenhaven mattresses are heavier than regular mattresses due to the natural latex foam construction. It has also been designed to be resilient to sagging in natural latex mattresses. Despite the denseness of the mattress, it is designed to be comfortable and responsive to the body's movements, so it won't create sagging issues. This is confirmed by Sleep Like The Dead's research, which gives Zenhaven an average customer satisfaction rating of 9/10. Layering multiple layers of this dense foam is a key factor in the performance and longevity of the mattress. The extra weight comes from the higher density of natural latex foam compared to synthetic or memory foam. In addition, this weight of a Saatva latex mattress makes it denser, resulting in better support and contouring. It is considerably heavier than the average innerspring mattress - the king-size Zenhaven can weigh up to 250 lbs, compared to the 90-140 lb range for a queen-sized innerspring. Zenhaven is a luxurious 100% natural latex mattress made in the U.S.A.