Shop Firm Mattresses
Our firm collection is packed with orthopaedic support. You'll find double-sided SlumberCare orthopaedics you can flip, firm pocket spring mattresses, supportive hybrid and memory foam models from Mlily, and natural latex firm options from Simply The Best.
Firm mattresses start from $349, with a large choice between $450 and $1,500 and premium orthopaedic models from around $2,000. Want the firmest support we stock? Browse our ultra firm mattresses. On a budget? See mattresses under $500.
What Does a Firm Mattress Feel Like?
A firm mattress has a dense support core and a thin, supportive comfort layer. You feel held up rather than sinking in, and there's very little movement when you change position. On a 1 to 10 firmness scale, firm sits around 7 to 8.
| Feel | Firmness (1 to 10) | Who It Suits |
|---|---|---|
| Medium Firm | 5 to 6 | Most sleepers |
| Firm | 7 to 8 | Back and stomach sleepers |
| Ultra Firm | 9 to 10 | Maximum support preference |
Who Should Choose a Firm Mattress?
- Back sleepers: Firm support helps keep your lower back from sinking.
- Stomach sleepers: It stops the hips dropping and arching the spine.
- Heavier sleepers: A firm core resists sagging and gives lasting support.
- People who run hot: You sink in less, so more of your body stays exposed to cooler air.
- Kids and teens: Many parents choose firm single and king single mattresses for growing backs.
If you sleep on your side and feel pressure at the shoulder, a medium firm mattress may be more comfortable.
Firm Mattresses in Every Size
Our firm range covers every bed. Firm single and king single mattresses are popular for kids' rooms, firm double and queen mattresses suit most couples, and firm king and super king mattresses give larger households plenty of supportive space. Availability varies by model, so check each product's size options before you order.
Top Firm Mattress Brands at Bedworld
- SlumberCare: Perth-made orthopaedic specialists, including double-sided Wallaby, Matilda and Maestro models.
- Simply The Best: WA-made Orthopaedic Pure Support, Entice Firm and Grand Posture Natural Firm.
- Mlily: Firm-feel hybrids and memory foam with carbon and copper cooling.
- Loren Williams: Harriet Superior, with 1,600 zoned pocket springs for firm, targeted support.
- A.H. Beard: Over 120 years of Australian craftsmanship, including the very firm Domino Glasgow.
Why Buy a Firm Mattress from Bedworld?
With over 20 years' experience as a family-owned Perth retailer, Bedworld makes buying easy:
- Perth Metro Delivery and Express Delivery on in-stock mattresses ordered before 5:30pm
- A 30 Night Comfort Guarantee and 3-Day Price Match Guarantee (conditions apply)
- Manufacturer warranty cover and flexible finance options
- Matching ensemble bases to keep firm support where it belongs
Frequently Asked Questions
Firm mattresses help many back and stomach sleepers by keeping the spine level and stopping the hips from sinking. But firmer is not always better. If a mattress causes pressure at the shoulders or hips, a medium firm option may give better alignment. Speak with your health professional if you have ongoing back pain.
Most side sleepers find a firm mattress too hard at the shoulder and hip. If you sleep on your side, a medium firm or plush mattress usually relieves pressure better. Heavier side sleepers may still enjoy a firm mattress with a good comfort layer.
An orthopaedic mattress is designed for firm, even support across the whole body. It usually has a strong spring unit and dense foam layers. Many of our SlumberCare orthopaedic mattresses are double-sided, so you can flip them to extend their life.
Most people adjust to a new firm mattress within two to four weeks. That's why our 30 Night Comfort Guarantee gives you time to settle in at home. Conditions apply, so read the guarantee page before you buy.
At Bedworld, firm mattresses start from $349. Most quality orthopaedic and pocket spring firm mattresses sit between $450 and $1,500, while premium orthopaedic and hybrid models start from around $2,000. Check each product for current pricing.
