Limited Edition Firm 3.0 King Mattress (M450-SI)

• Twin (M45011)
• Full (M45021)
• Queen (M45031)
• King (M45041)
• California King (M45051)
• Twin XL (M45071)

• Rest easy. This firm mattress provides the coziness you crave and the support you need for better sleep. It’s crafted with layers of quilt foam and firm foam for the right balance of stability and comfort. Gel memory foam cradles pressure points for added relief. And with its motion-reducing wrapped coils, this mattress lets you snooze soundly while sharing space with partners and pets alike.
  Details:
  

  1. Comfort level: ultra firm
  2. Hyper Cool luxury 4-way stretch knit cover for uniform comfort and durability
  3. High-density quilt foam for support and comfort
  4. High-density firm foam for added support
  5. High-density gel memory foam for personalized comfort
  6. Power-packed wrapped coil system with reinforced Ashley Edge, for undisturbed sleep and full edge-to-edge support
  7. 10-year non-prorated warranty
  8. Note: Purchasing mattress and foundation from two different brands may void warranty; check warranty for details
  9. Foundation/box spring available, sold separately
  10. Mattress ships in a box; please allow 48 hours for your mattress to fully expand after opening
  11. State recycling fee may apply
  Fabric Content: Barrier Coating: 11%, Fillament Poly: 11%, Para Aramid Fiber: 5%, Polyester: 20%, Viscose: 53%
  Assembly: No Assembly Required
  Unit Dimensions: 75''W x 38''D x 13''H
  SKU: M45011
  UPC: 024052975727
  Status: Current Since: 7/17/2026 5:00:00 AM
• Rest easy. This firm mattress provides the coziness you crave and the support you need for better sleep. It’s crafted with layers of quilt foam and firm foam for the right balance of stability and comfort. Gel memory foam cradles pressure points for added relief. And with its motion-reducing wrapped coils, this mattress lets you snooze soundly while sharing space with partners and pets alike.
  Details:
  

  1. Comfort level: ultra firm
  2. Hyper Cool luxury 4-way stretch knit cover for uniform comfort and durability
  3. High-density quilt foam for support and comfort
  4. High-density firm foam for added support
  5. High-density gel memory foam for personalized comfort
  6. Power-packed wrapped coil system with reinforced Ashley Edge, for undisturbed sleep and full edge-to-edge support
  7. 10-year non-prorated warranty
  8. Note: Purchasing mattress and foundation from two different brands may void warranty; check warranty for details
  9. Foundation/box spring available, sold separately
  10. Mattress ships in a box; please allow 48 hours for your mattress to fully expand after opening
  11. State recycling fee may apply
  Fabric Content: Barrier Coating: 11%, Fillament Poly: 11%, Para Aramid Fiber: 5%, Polyester: 20%, Viscose: 53%
  Assembly: No Assembly Required
  Unit Dimensions: 75''W x 53''D x 13''H
  SKU: M45021
  UPC: 024052975734
  Status: Current Since: 8/13/2026 5:00:00 AM
• Rest easy. This firm mattress provides the coziness you crave and the support you need for better sleep. It’s crafted with layers of quilt foam and firm foam for the right balance of stability and comfort. Gel memory foam cradles pressure points for added relief. And with its motion-reducing wrapped coils, this mattress lets you snooze soundly while sharing space with partners and pets alike.
  Details:
  

  1. Comfort level: ultra firm
  2. Hyper Cool luxury 4-way stretch knit cover for uniform comfort and durability
  3. High-density quilt foam for support and comfort
  4. High-density firm foam for added support
  5. High-density gel memory foam for personalized comfort
  6. Power-packed wrapped coil system with reinforced Ashley Edge, for undisturbed sleep and full edge-to-edge support
  7. 10-year non-prorated warranty
  8. Note: Purchasing mattress and foundation from two different brands may void warranty; check warranty for details
  9. Foundation/box spring available, sold separately
  10. Mattress ships in a box; please allow 48 hours for your mattress to fully expand after opening
  11. State recycling fee may apply
  Fabric Content: Barrier Coating: 11%, Fillament Poly: 11%, Para Aramid Fiber: 5%, Polyester: 20%, Viscose: 53%
  Assembly: No Assembly Required
  Unit Dimensions: 80''W x 60''D x 13''H
  SKU: M45031
  UPC: 024052975741
  Status: Current Since: 8/10/2026 5:00:00 AM
• Rest easy. This firm mattress provides the coziness you crave and the support you need for better sleep. It’s crafted with layers of quilt foam and firm foam for the right balance of stability and comfort. Gel memory foam cradles pressure points for added relief. And with its motion-reducing wrapped coils, this mattress lets you snooze soundly while sharing space with partners and pets alike.
  Details:
  

  1. Comfort level: ultra firm
  2. Hyper Cool luxury 4-way stretch knit cover for uniform comfort and durability
  3. High-density quilt foam for support and comfort
  4. High-density firm foam for added support
  5. High-density gel memory foam for personalized comfort
  6. Power-packed wrapped coil system with reinforced Ashley Edge, for undisturbed sleep and full edge-to-edge support
  7. 10-year non-prorated warranty
  8. Note: Purchasing mattress and foundation from two different brands may void warranty; check warranty for details
  9. Foundation/box spring available, sold separately
  10. Mattress ships in a box; please allow 48 hours for your mattress to fully expand after opening
  11. State recycling fee may apply
  Fabric Content: Barrier Coating: 11%, Fillament Poly: 11%, Para Aramid Fiber: 5%, Polyester: 20%, Viscose: 53%
  Assembly: No Assembly Required
  Unit Dimensions: 80''W x 76''D x 13''H
  SKU: M45041
  UPC: 024052975758
  Status: Current Since: 7/17/2026 5:00:00 AM
• Rest easy. This firm mattress provides the coziness you crave and the support you need for better sleep. It’s crafted with layers of quilt foam and firm foam for the right balance of stability and comfort. Gel memory foam cradles pressure points for added relief. And with its motion-reducing wrapped coils, this mattress lets you snooze soundly while sharing space with partners and pets alike.
  Details:
  

  1. Comfort level: ultra firm
  2. Hyper Cool luxury 4-way stretch knit cover for uniform comfort and durability
  3. High-density quilt foam for support and comfort
  4. High-density firm foam for added support
  5. High-density gel memory foam for personalized comfort
  6. Power-packed wrapped coil system with reinforced Ashley Edge, for undisturbed sleep and full edge-to-edge support
  7. 10-year non-prorated warranty
  8. Note: Purchasing mattress and foundation from two different brands may void warranty; check warranty for details
  9. Foundation/box spring available, sold separately
  10. Mattress ships in a box; please allow 48 hours for your mattress to fully expand after opening
  11. State recycling fee may apply
  Fabric Content: Barrier Coating: 11%, Fillament Poly: 11%, Para Aramid Fiber: 5%, Polyester: 20%, Viscose: 53%
  Assembly: No Assembly Required
  Unit Dimensions: 84''W x 72''D x 13''H
  SKU: M45051
  UPC: 024052975765
  Status: Current Since: 8/13/2026 5:00:00 AM
• Rest easy. This firm mattress provides the coziness you crave and the support you need for better sleep. It’s crafted with layers of quilt foam and firm foam for the right balance of stability and comfort. Gel memory foam cradles pressure points for added relief. And with its motion-reducing wrapped coils, this mattress lets you snooze soundly while sharing space with partners and pets alike.
  Details:
  

  1. Comfort level: ultra firm
  2. Hyper Cool luxury 4-way stretch knit cover for uniform comfort and durability
  3. High-density quilt foam for support and comfort
  4. High-density firm foam for added support
  5. High-density gel memory foam for personalized comfort
  6. Power-packed wrapped coil system with reinforced Ashley Edge, for undisturbed sleep and full edge-to-edge support
  7. 10-year non-prorated warranty
  8. Note: Purchasing mattress and foundation from two different brands may void warranty; check warranty for details
  9. Foundation/box spring available, sold separately
  10. Mattress ships in a box; please allow 48 hours for your mattress to fully expand after opening
  11. State recycling fee may apply
  Fabric Content: Barrier Coating: 11%, Fillament Poly: 11%, Para Aramid Fiber: 5%, Polyester: 20%, Viscose: 53%
  Assembly: No Assembly Required
  Unit Dimensions: 80''W x 38''D x 13''H
  SKU: M45071
  UPC: 024052975772
  Status: Current Since: 8/13/2026 5:00:00 AM

Product Information