A Serta Classic 12.5-inch Firm Mattress is on sale now for $499 normally $1,899. You save $1,400. Serta Classic Clarks Hill LTD 12.5" Firm Mattress - Innerspring; Fiberglass-Free, on sale for $499 ...

If you're thinking of taking the plunge, now's the time: Black Friday mattress deals are live, and this year, they're pretty impressive. Other brands, like Sealy and Serta, have similarly ...