Cars & Other Vehicles Should my mattress be firm or plush? Should my mattress be firm or plush? G Is plush or firm better for back pain? e Is plush or firm better for side sleepers? n Related Posts:What kind of mattress firmness is best for back pain?Marriott Official Bed is Medium to Firm Support and is available on Amazon.com.Whats better for your back a firm or soft mattress?Is Talalay latex good for side sleepers?