Futon Mattress Sizes and Dimensions - Sleep Junkie
Gold Bond 8" Cotton Duct King Size Futon Mattress | Wayfair
What are the sizes of futons? – Futonland Help Center
What are the sizes of futons? – Futonland Help Center
Amazon.com: Trupedic x Mozaic - 6 inch Full Size Standard Futon Mattress (Frame Not Included) | Basic Silver | Great for Kid's Rooms or Guest Areas - Many Color Options : Home & Kitchen
A Comprehensive Guide to Common Futon Mattress Sizes