Molecule 12 in. Air-Engineered Memory Foam Mattress: M1 Twin or Twin XL $559.20, Full $639.20 | M2 Full $934.15 + Free Delivery By admin | February 23, 2020 1:07 pm EST 0 Comment Home Depot has Molecule 12 in. Air-Engineered Memory Foam Mattresses from $559.20 w/ free shipping. Molecule M1 Twin $559.20 Twin XL $559.20 Full $639.20 Molecule M2 Twin $849.15 Twin XL $849.15 Full $934.15 Notes: Lifetime manufacturer’s warranty Manufactured in USA