A protector keeps the warranty valid from night one — and it all rides along with your white-glove delivery, no extra trip.
The Southerland Cobalt Firm Mattress is a firm innerspring mattress built for back and stomach sleepers, and plus-size sleepers. Southerland's Scandinavian collection layers gel-infused memory foam over an offset-coil unit for cool, supportive sleep at a working family budget. At 13", it sits in the standard profile range — generous enough for adjustable bases yet still easy to sheet.
A foam-encased perimeter lets you use the full sleep surface — and sit on the edge to dress.
A reinforced center third keeps the spine aligned across every position.
We deliver, set up in your bedroom, and haul away your old mattress — no extra charge.
A 7/10 firmness, gentle support without sinking. Good for back and combination sleepers, plus side sleepers over 200 lb.
Built for adaptive support and breathability. Every layer is hand-checked before it ships from our warehouse.
Quality sleep at the best value
With roots tracing to 1893, Southerland’s unending commitment to its customers and business partners has allowed us to grow into one of the largest and most respected bedding manufacturers in the United States. Because America sleeps on Southerland, we think it’s important that our sleep systems are made in America.
Certifications
All the foams in this mattress have environmental certifications that ensure they are safe and non-toxic. Our polyurethane foams (memory foam, transition foam, and poly support foam) are CertiPUR certified.
It has a firm feel, 7 out of 10 on our scale where 1 is the softest. It is a good fit for side sleeping, great fit for back sleeping, and great fit for stomach sleeping.
From top to bottom it is built from Quilted comfort top, Comfort foam layers, Pocketed (or offset) coils, and Foam-encased perimeter in a 13-inch profile. A plush quilt that softens the surface feel.
It suits: Back and stomach sleepers; Plus-size sleepers needing lift; Sleepers with chronic lower-back pain; Hot sleepers (less foam to trap heat). It is a weaker fit for: Side sleepers under 150 lb (shoulder pressure); Sleepers wanting cushioned pressure relief.
Yes, free white-glove delivery anywhere in Los Angeles on orders over $499, including setup and free haul-away of your old mattress. Order by 4pm for same-day delivery.
You have our 120-night comfort exchange. Sleep on it for at least 30 nights, and if it isn't right, exchange it for another mattress, we handle the pickup and redelivery.
Yes, 0% APR financing through Synchrony on approved credit, plus Acima lease-to-own with no credit needed. Most applicants are approved in minutes at checkout or in any showroom.
Yes, our Los Angeles showrooms in Koreatown, West LA, La Brea, Studio City, and Glendale carry our lineup on the floor. Walk-ins welcome, no appointment needed.
