Popsugar Living Home Shopping Best Cheap Futons 11 Surprisingly Stylish Sleeper Sofas Perfect For Small Spaces — All Under $220 2 April 2019 by Krista Jones View On One Page Photo 9 of 11 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 9 Mainstays Memory Foam Futon This functional Mainstays Memory Foam Futon ($149, originally $200) features adjustable sides. Mainstays Memory Foam Futon $149 from walmart.com Buy Now Previous Next Start Slideshow ShoppingHome ShoppingBedroomLiving RoomsFurniture