4Sleep vs Muse vs Sapira vs Airweave

4Sleep, Muse, Sapira and Airweave all belong to the same product category. These products are available in all regular sizes on the market. Flip over these mattresses for enjoying a comfortable rest on both sleep surfaces. The quilted foam is breathable, maintaining a hygienic sleep surface. Their warranties include repair and exchange policies. Warranties cover premature sagging and indentations. You can also claim manufacturing defects.