King Koil Otto Ultra Firm

Better Sleep. Better Environment. The Otto Ultra Firm mattress is covered with EverJean post-consumer recycled denim — this is the shell for what is to come. It also gives us our signature look and is extremely durable.

What’s Inside? Nature. Our mission is to deliver you a better night’s rest while helping our planet. Good for you means good for nature, which is why we use several eco-friendly materials such as plant based foams, biodegradable steel coils and natural latex.