Zinus Slumber 1 6" Innerspring Mattress vs Zinus 6 Inch Foam and Spring Mattress

These are close cousins: both are 6-inch Zinus hybrid foam-and-innerspring mattresses in a box with a 10-year warranty, and both use CertiPUR-US foams. The Slumber 1 Comfort Plus adds a fiber-quilted cover, Visco latex foam and OEKO-TEX certification, and it is sold in Twin only. The 6 Inch Foam and Spring is the broader line: six sizes and three thicknesses, with a stated 250 lb Twin limit and 500 lb on larger sizes. Reviewers of both report a firm, reactive feel and a short break-in period; neither is a plush mattress.

• Choose the Slumber 1 Comfort Plus if you want a Twin with a quilted cover and latex foam for a firmer, more responsive feel.
• Choose the Zinus 6 Inch Foam and Spring if you need a size other than Twin, a thicker profile, or a stated weight limit.