Dr. Futonberg's Product Recommendations - Futons & Sofa Beds: What type of futon mattress should I use for a tri-fold futon frame love seat?
The Futon Size Guide: How to Choose a Perfect Fit – Furnishing Tips: Home Furniture Decor Guide, Ideas, & Tips
Things to consider when buying futons
Buy MIINA Japanese Floor Matress, Shiki Futon, Floor Bed, Sofa Bed Matress, Volume Type Twin (39×78),100% Cotton, Made in Japan Online in Hungary. B08GFH21CL