Sterling Sleep Systems are Simple to Setup, Firmness-adjustable, Luxuriously Comfortable and Eco-friendly

Imperial 3-Diamond 605 Plush Top Innerspring Mattress

Imperial 620 Plush Top Memory Foam Mattress
Mattress and Foundation sold separately.
Foundations may be selected at the bottom of the page

To download or print a copy of the bed specs below, click here and it will appear in a new window.

TThe Sterling Imperial 3-Diamond plush top mattress is an easy way to add comfort to your guest rooms while saving time and money.
With a sustainable construction and interchangeable parts, you can quickly and easily clean the mattress inside and out and treat for bed bugs using harmless food-grade diatomaceous earth inside the bed.
Made with Leggett & Platt’s 6” fabric-encased innerspring unit, the Sterling Imperial 3-Diamond mattress is a long-lasting option you won’t have to replace often.

3-Diamond features:

• Fully foam-encased & edge support
• Modular construction with removable, replaceable components
• Antibacterial and antimicrobial protection
• 10” mattress height, including 6” fabric-encased coils
• Earns two LEED points: one for recycled content and the second for sustainable design
• 10-year warranty


  Dimensions and Coil Counts   
Twin  38"x75" 312/435
TwinXL 38"x80" 312/465
Full 54"x75" 468/609
Queen 60"x80" 609/744
E King 76"x80" 756/930
Cal King 72"x84" 780/928


   Total Bed Height
Mattress 10"
Foundation 8"
Metal bed frame 7"
Total bed height = 25"

All Sterling Sleep System mattresses meet the 1632, 1633 Federal Flammability Standards and California TB603.
U.S. patents: 7,191,483 and 7,386,903.
Other patents pending.
Sterling Sleep Systems • 7311 Doig Dr., Garden Grove, CA 92841 • 888.281.2817 •


Base Price: $1,649.00 Your Price: $1,649.00
  • Queen = 60x80