M3 - Independent Suspension Units 1.0 - Medium Firm

The M3 Mattress Coil System is designed so you can easily update the firmness level on your M3 mattress. Each system includes enough coils to update one side of the mattress. As your comfort preference changes over time, you no longer need to buy a whole new mattress with the M3 mattress system.
M3 - Twin Long Independent Suspension Units - Medium Firm
31.0in L, 72.0in W, 7.0in H, and 34.0 lb
M3 - Queen Independent Suspension Units - Medium Firm
26.0in L, 72.0in W, 7.0in H, and 30.0 lb
M3 - King Independent Suspension Units - Medium Firm
31.0in L, 72.0in W, 7.0in H, and 38.0 lb
M3 - California King Independent Suspension Units - Medium Firm
31.0in L, 72.0in W, 7.0in H, and 37.0 lb
Split California King Modular Independent Suspension Units - Medium Firm
28.0in L, 76.0in W, 7.0in H, and 37.0 lb