We make our futon mattresses from layers of cotton and foam, or many layers of just cotton, and with a canvas fabric casing to hold everything together. The more layers, the more comfort. Each layer of cotton is about half an inch thick.
We use two different types of foam. Low density foam, LD, which is lighter in weight and more economical and high density foam, HD, which lasts a lot longer than LD foam. All of our foam layers are one inch thick.
We also have a 12 layer all-cotton futon mattress which has no layers of foam inside. This is closest to traditional Japanese futon.
Futon Mattress For Sleeping
If you are going to use your futon for sleeping, then you will need high density, HD, foam since HD foam lasts a lot longer than low density foam. You can also use an all cotton futon mattress for sleeping.
All cotton futon is heavy in weight and lumpy in structure. As you use all cotton futons, it gets more compact. Futon mattresses that have layers of foam are lighter in weight and they hold their shape better.
Futon Mattress Firmness
We have three futon mattresses that we recommend for everyday sleeping. All cotton futon, which is plush for first few months of use and gradually gets firmer. Then Our 5Cotton4Foam model, which is on the firm side and holds its firmness, and our plush top which is - as the name suggests - plush!