- Will this make a firm mattress softer?
- Yes, the 3-inch foam layer adds cushioning on top of a firm mattress. It softens the surface but does not change the mattress's underlying support.
- Does it sleep hot?
- Some owners report it traps heat. Memory foam tends to run warm, so hot sleepers may prefer a gel-infused topper.
- What size should I get for a King bed?
- Choose the King, which measures 72 by 82 inches. California King beds need the 74 by 78 inch California King size.
- Does it come with a cover?
- Many versions ship with a removable cover. Check the listing for the specific size before buying.
- Is $124.79 a good price?
- It is the best new price found, at Kohl's as of November 7, 2026, and only one store lists it new, so there is little room to wait for a lower price.
- How long does it last?
- Reviews are mixed on longevity. Some owners report flattening within months, so expect a shorter life than a premium topper.
- Where is the Serta Total Support 3-inch Response Foam Mattress Topper, King cheapest?
- At Kohl's, for $124.79, as of our latest check.
- What do buyers say about the Serta Total Support 3-inch Response Foam Mattress Topper, King?
- Rated 3.1 out of 5 from 33 ratings.