ZINUS No Assembly Metal Box Spring, 4 Inch White Mattress Foundation, Sturdy Metal Structure, Split King

Brand: ZinusColor: As Simple as Unfold & Unwind - Requiring No Tools and Zero Tedious Assembly, the Innovative No AsseFeatures: General Note: Please allow 24 - 72 hours for your Mattress to regain its full shape. Any memory foam will expand faster in a warmer room. In cold temperature, at delivery, your mattress may take a bit longer to return to full sized from its compressed state.The expansion time of the mattress will vary as per the surrounding Set Up: Simply take your mattress out of the box and enjoy watching it decompress. Jumping, walking, and sleeping on your mattress can speed up the process AS SIMPLE AS UNFOLD & UNWIND - Requiring no tools and zero tedious assembly, the innovative No Assembly box spring requires only unfolding to become bedtime ready; the hardest part will be taking it out of the box DURABLY ENGINEERED - Durable steel is used to construct the interior framework of this reliable foundation; twin size supports a maximum weight capacity of 350 lbs, wh