What to Look for
When Buying a Mattress.
A mattress is a long-term investment in your health, comfort, and productivity. Here is everything you should know before you buy — from our specialists to you.
10 Factors That Actually Matter
The right mattress can reduce aches, improve sleep quality, and boost daytime energy. The wrong one can do the opposite. With so many options on the market, it helps to know which features genuinely make a difference and which ones are just marketing.
Below, our National Mattress specialists outline every factor you should weigh before you click "Add to Cart" or visit one of our Ontario showrooms. No jargon, no sales pressure — just the information you need to make a confident choice.
The Complete Mattress Buying Checklist
Comfort and Feel
Comfort is personal, and no spec sheet can replace lying on a mattress yourself. Try each firmness level — plush, medium, and firm — for at least 10 minutes so your muscles can relax and pressure points emerge. Pay attention to pressure relief: high-density memory foam, natural latex, and quilted Euro-tops cradle hips and shoulders so blood flow is not restricted.
Also consider the fabric touch. Look for breathable knit covers treated with cooling fibres or eco-certified plant-based finishes for a softer, healthier surface against your skin.
Personalised Support and Spinal Alignment
Quality mattresses vary coil gauge or foam density across zones to buoy heavier regions like hips and lumbar while cushioning lighter areas like the head and legs. This targeted zoning keeps your spine in its natural position regardless of how you sleep.
Here is how to test alignment: when you lie on your side, your spine should form a straight line from neck to tailbone. On your back, your natural "S" curve should be maintained without your hips sinking too deep or your shoulders feeling pushed up.
Size and Sleeping Space
Choosing the right size is about more than fitting the room. Your mattress should give every sleeper enough space to move freely without disturbing a partner.
| Sleeper(s) | Minimum Size | Why Upgrade? |
|---|---|---|
| Single adult | Twin XL | Extra leg room for anyone over 6'0" |
| Couple | Queen | Sufficient width for most partners |
| Couple + kids/pets | King | Reduces partner disturbance and provides stretch-out space |
Tip: A larger mattress often outlasts a smaller one because body weight is distributed over a wider surface area.
Durability and Materials
The materials inside your mattress determine how long it will last and how well it will hold up over time. Not all foams and coils are created equal, so it is worth understanding the numbers behind the marketing.
Temperature Regulation and Breathability
If you sleep hot, temperature regulation should be near the top of your checklist. Look for phase-change (PCM) yarns that pull heat away when you warm up, open-cell or graphite-infused foams for faster thermal dissipation, and ventilated coil systems or pin-holed latex that promote continuous airflow through the mattress core.
The cover fabric matters too — breathable knit panels and moisture-wicking treatments help keep the sleep surface cool and dry throughout the night.
Motion Isolation
Sharing the bed? This factor determines whether your partner's movements wake you up. Memory foam, hybrid models with individually wrapped pocket coils, and latex over micro-coils all dampen motion transfer effectively, keeping each sleeper in their own zone undisturbed. If you or your partner is a restless sleeper, prioritise this feature.
Edge Support and Accessibility
High-density foam rails or firmer perimeter coils let you sit on the edge, tie your shoes, or spread out to the full surface without feeling like you will roll off. Strong edge support also makes getting in and out of bed easier — especially important for seniors or anyone with mobility concerns.
Compatibility: Bases and Lifestyle
Make sure your new mattress works with your current setup — or the one you plan to buy. Adjustable-base-ready mattresses use flexible core construction that will not be damaged when the head and foot sections articulate. Low-profile foundations work with modern platform frames or keep bed height comfortable for children. If allergies or spills are a concern, look for removable, machine-washable covers.
Trial Period, Warranty, and Budget
A mattress feels different after a few weeks than it does in the first five minutes. A generous trial period gives your body time to adjust, a strong warranty protects your investment, and a realistic budget helps you find the best value at your price point.
| Factor | Good | Better | Best |
|---|---|---|---|
| Sleep trial | 30 nights | 60 nights | 365 nights |
| Warranty | 5 years | 10 years | 15–20 years (non-prorated) |
| Budget to value | Under $600: basic foam or coil | $800–$1,500: quality hybrid or latex | $1,600+: luxury, organic, or smart beds |
Remember: a mattress that wears out early is the most expensive one you will ever buy.
Mattress Type
Each construction type has distinct strengths. The right one for you depends on your sleep position, temperature needs, and personal feel preference. Here is a quick overview.
Memory Foam
Deep contouring and outstanding motion isolation. Ideal for side sleepers and couples. Look for gel-infused or open-cell versions if you sleep hot.
Hybrid
Best of both worlds — pocket coils for support and airflow, topped with foam or latex for contouring and comfort. Great for most sleep positions.
Natural Latex
Resilient, hypoallergenic, and eco-preferred. Naturally cooling with a buoyant, responsive feel. Excellent durability that often outlasts foam alternatives.
Traditional Innerspring
Budget-friendly, breathable, and firmer by design. A solid option for back and stomach sleepers who prefer a more traditional, bouncy feel.
"The best mattress is not the most expensive one — it is the one that matches your body, your sleep position, and your budget. Our job is to cut through the marketing noise and help you find it."
— The National Mattress Team
Why Shop with National Mattress?
Understanding what to look for is half the battle. The other half is finding a retailer that lets you make an informed decision without pressure. Here is what makes National Mattress different.
Commission-Free Experts
Our sleep specialists earn the same regardless of what you buy. That means advice you can trust — never upselling. Learn about our approach.
Convenient Ontario Showrooms
Visit locations across Ontario — including Toronto, Markham, Mississauga, Hamilton, and more — to feel every mattress before you buy. Find a showroom.
365-Night Comfort Guarantee
Sleep on your new mattress for up to 365 nights. If it is not the right fit, exchange firmness or model, or get a full refund. No hassle, no risk.
Fast, Free Ontario Delivery
Next-day delivery on most in-stock models, or schedule a date that works for you. Fast, free, and coordinated from start to finish.
Price Match Guarantee
Found the same mattress for less? We will beat that price by 10%. You should never overpay for the same bed.
Giving Back with Every Sale
A portion of every purchase funds bed kits for children in need through Sleeping Children Around the World.
Frequently Asked Questions
What firmness level is best for side sleepers?
How important is coil count in a mattress?
What does foam density mean and why does it matter?
What size mattress should a couple get?
Are certifications like CertiPUR-US and OEKO-TEX important?
How do I know if a mattress will work with my adjustable base?
What mattress is best for hot sleepers?
How much should I spend on a mattress?
Ready to Find Your Perfect Mattress?
Take our 2-minute quiz for a personalised recommendation, or visit a showroom to feel the difference in person — no pressure, no commission.
