For futon frames we recommend a futon mattress at least six inches thick. Power packed futon that gives you the benefits of the upper-end futon line tailored into a semi-soft 6" futon shell. What more could you want from an entry-level futon a top qu ality futon feel for less! Filled with fantastic foams so it will look and feel great retaining its shape for a long long time. Chair Mattress: 54L x 28W inchesOttoman Mattress: 28L x 21W inchesTwin Mattress: 75L x 39W inchesTwin Loveseat Mattress - 2 pieces: 54L x 39W inches & 34L x 21W inchesFull/Double Mattress: 75L x 54W inchesFull Loveseat Mattress - 2 pieces: 54L x 54W inches & 54L x 21W inchesQueen Mattress: 80L x 60W inchesKing Mattress: 80L x 76W inchesCal King Mattress: 80L x 78W inche