I expected more from Sealy name brand. ￼￼I purchased Extra long twin. Very light weight, ￼such that the mattress easily moves on the foundation. Yes, it has a cover, yet the cover simply shields ￼otherwise exposed coils with memory foam on top and bottom. Otherwise, construction is really nonexistent. For growing kids and a tight budget, probably acceptable. Might hold up for several years. For college age and most adults, I do not recommend. I will be returning and exchanging for stronger sounder construction. ￼