Zinus Shawn 14 Inch Metal SmartBase Bed Frame / Platform Bed Frame / No Box Spring Needed / Sturdy Steel Frame / Underbed Storage, Narrow TwinThe Shawn SmartBase checks off a lot of boxes on a bed frame wishlist. Excellent mattress support without a box spring? Check. An abundance of underbed storage space? Check. Over 30,000 5-star reviews? Check! Frankly, we?re not surprised that so many happy customers have traded in their two-piece box spring and bed frame sets for this reinforced steel base. It?s designed with a metal platform that you can rest your memory foam, latex or spring mattress directly on top of for extended mattress life. It?s also engineered with multiple support legs for maximum stability and squeak-free use. Plus, those legs have plastic caps at the ends to protect your floors from unnecessary scratches. With swift assembly that only requires your own two hands and a 5-year worry-free warranty included, this extraordinary foundation is what we call a win-win.Zinus Memory Foam 5 Inch Cot Size / 30" x 75" / Narrow Twin MattressThe 5 inch narrow twin memory foam mattress is a new cozy size for tight spaces. Measuring 30 inches wide by 75 inches, Cot Size, this new narrow twin size provides memory foam conforming comfort. The full support high density foam base layer provides long lasting durability and stability. Please open your mattress package within 72 hours of receipt and allow 48 hours for your new mattress to return to its original, plush shape. Worry free 10 year limited warranty. Another comfort innovation from Zinus.