Are there any independent analyses that can help me evaluate the quality of different mattresses?

They compared a latex mattress and a traditional spring mattress in 16 healthy volunteers and evaluated the results before and after both using actigraphy and a mini-sleep questionnaire (MSQ). Questionnaire on the structural and morphological qualities of the mattress (firmness and softness). They compared a latex mattress and a traditional spring mattress in 16 healthy volunteers and evaluated the results before and after both using actigraphy and a mini-sleep questionnaire (MSQ). Questionnaire on the structural and morphological qualities of the mattress (firmness and softness).