Robust, supportive and exquisitely crafted in Australia, the Sealy Optimum Linear Deluxe Firm Mattress - King Single is the go-to choice for back sleepers and those who prefer a firmer sleep style. Boasting a deluxe combination of high-density support foam, ultra-sensitive Sense material and body conforming viscoelastic foam, it’s a simply stunning sleep.
Robust, supportive and exquisitely crafted in Australia, the Sealy Optimum Linear Deluxe Firm Mattress - King Single is the go-to choice for back sleepers and those who prefer a firmer sleep style. Boasting a deluxe combination of high-density support foam, ultra-sensitive Sense material and body conforming viscoelastic foam, it’s a simply stunning sleep.
in 1 offers
The lowest price for Sealy Optimum Linear Deluxe Firm Mattress - King Single right now is $3,399.00 at Harvey Norman.
The all-time low was $3,059.00 on 31 Dec 2025 — today's price is 11% above the lowest ever. That's a little above the best price we've seen.
Prices last updated 11 May 2026.
Sealy Optimum Linear Deluxe Firm Mattress - King Single
Robust, supportive and exquisitely crafted in Australia, the Sealy Optimum Linear Deluxe Firm Mattress - King Single is the go-to choice for back sleepers and those who prefer a firmer sleep style. Boasting a deluxe combination of high-density support foam, ultra-sensitive Sense material and body conforming viscoelastic foam, it’s a simply stunning sleep.
Robust, supportive and exquisitely crafted in Australia, the Sealy Optimum Linear Deluxe Firm Mattress - King Single is the go-to choice for back sleepers and those who prefer a firmer sleep style. Boasting a deluxe combination of high-density support foam, ultra-sensitive Sense material and body conforming viscoelastic foam, it’s a simply stunning sleep.
Last updated at 11/05/2026 04:21:03
Sealy Optimum Linear Deluxe Firm Mattress - King Single
Delivery $299
| Exclusive to Harvey Norman | Yes |
| Made in | Australia |
| Mattress Cover | Cotton/Polyester Blend |
| Comfort Layers | Visco Elastic |
| Support Material | High Density Foam |
Sealy Optimum Linear Deluxe Firm Mattress - King Single
Delivery $299
| Exclusive to Harvey Norman | Yes |
| Made in | Australia |
| Mattress Cover | Cotton/Polyester Blend |
| Comfort Layers | Visco Elastic |
| Support Material | High Density Foam |
