Stearns & Foster Luxury 5" or 9" Flat Mattress Foundation

🔎 Learn More About This Foundation

Stearns & Foster® Flat Foundation

🛏️ Engineered Support. Timeless Design.

The Stearns & Foster® Flat Foundation is crafted to provide a solid, flat surface that supports your mattress perfectly. Whether you choose the classic 9” high profile or the modern 5” low profile, this foundation is designed to enhance the durability, comfort, and aesthetic of your sleep system.

✨ Why You’ll Love It

• Perfect Match: Crafted to complement the design and structure of Stearns & Foster® mattresses
• Custom Comfort: Available in two heights – 9" for traditional height and 5" for a modern low-profile look
• Space-Saving: Low-profile version easily fits through tight stairways and doorways
• Elegant Fabric: Upholstered with high-quality textiles to match your bedroom décor
• Sturdy Support: Solid construction ensures years of stable, stationary support

📏 Size Availability

• Twin: 74" L x 38" W
• Twin Long: 79" L x 38" W
• Full: 74" L x 53" W
• Queen: 79" L x 60" W
• King (Split): 79" L x 38" W each (2 pieces)
• CA King (Split): 84" L x 36" W each (2 pieces)
• Split Queen: 79" L x 30" W each (2 pieces)

⚖️ Product Weight

High Profile – 9”

• Twin: 31 lbs
• Twin Long: 35 lbs
• Full: 42 lbs
• Queen: 48 lbs
• King / CA King: 70 lbs total (35 lbs each piece)
• Split Queen: 60 lbs total (30 lbs each piece)

Low Profile – 5”

• Twin: 25 lbs
• Twin Long: 29 lbs
• Full: 38 lbs
• Queen: 46 lbs
• King / CA King: 58 lbs total (29 lbs each piece)
• Split Queen: 58 lbs total (29 lbs each piece)
• Split CA King: 56 lbs total (28 lbs each piece)