Reddit reviews Zinus Jayanna 4 Inch BiFold Box Spring / Mattress Foundation / Zero Assembly / Sturdy Metal Structure / Low Profile, Queen

DIMENSIONS: 79" X 59.5" X 4" | Weight: 34.6 lbBOX SPRING: A bed frame or platform bed is required to support this foundation (sold separately)AS SIMPLE AS UNFOLD & UNWIND - Requiring no tools and zero tedious assembly, the innovative BiFold box spring requires only unfolding to become bedtime ready; the hardest part will be taking it out of the boxDURABLY ENGINEERED - Durable steel is used to construct the interior framework of this reliable foundation; slats are spaced 2.8 inches apart; twin size supports a maximum weight capacity of 250 lbs, while all other sizes can support up to 500 lbsLOW PROFILE DESIGN - A 4 inch height is perfect for taller mattresses or for those who enjoy their bed lower to the floorTHOUGHTFULLY PACKAGED - All parts and instructions are packed into one compact box that ships straight to your door