The Saatva Foundation is crafted from premium materials like CertiPUR-certified foam, organic cotton, and North American ...

Twin Size Metal Daybed Frame☆ Structured with heavy-duty metal ensures durability and stability. Strong mattress foundation and no box spring needed. Mattress not included. ☆Space Saving ...

Hence the rise of the modern iteration of the box spring: the mattress foundation. Generally made with wood or metal, these foundations are framelike with support slats across the top where the ...