After reviewing many box mattresses, I chose Tuft and needle, which was an excellent choice. The mattress is firm, but soft and offers good support for my back problems. Also, when choosing mattresses it can be confusing because some are for side sleeper or back sleepers, where the mattress I purchased works for all types of sleepers.
I bought the full mattress and frame. It came quickly, and was easy to assemble by myself. It took a day or 2 to really plump up, but now it is sooo comfortable! I got it for a guest bedroom and my parents loved sleeping on it!
My son recommended the Tuft and needle mattress after he purchased it and I was very pleased with how comfortable the T&N mattress is. Great quality for a great price!