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Medium Serta® iComfort® Best Mattresses For Side Sleepers

Medium-firmness mattresses — often called medium-firm — sit right between plush and firm, which is why they're the most popular and versatile feel we carry. You get enough cushioning to relieve pressure with enough support to keep your spine aligned, making medium a safe choice for back sleepers, combination sleepers who change positions through the night, and couples who need a compromise between two preferences. Shop medium models from Sealy, Serta, Beautyrest, Stearns & Foster, iComfort and Tempur-Pedic across memory foam, hybrid, euro-top, pillow-top and tight-top builds — with free delivery across Canada. • Feel: medium sits between plush and firm — balanced and the most versatile of our four comfort levels • Also called "medium-firm" — the middle of the firmness scale • Best for: back sleepers, combination sleepers, couples, and most body types • Consider plush if you sleep on your side; firm if you sleep on your stomach or want more support • Constructions: euro-top, tight-top, pillow-top, memory foam and hybrid • Brands: Sealy, Serta, Beautyrest, Stearns & Foster, iComfort, Tempur-Pedic, Springwall & NM • Prices: from $171 to premium
iComfort by Serta features advanced cooling foams and gel technology that draw heat away for a cooler night's sleep. Compare every option below by feel, size, and price.

Shop mattresses for side sleepers at National Mattress, a range of models from Sealy, Serta, Beautyrest, Springwall, Tempur-Pedic, and Stearns & Foster in medium and plush comfort levels across a range of budgets. Our collection includes eurotop/pillowtop, memory foam, hybrid, and latex options, with 93% featuring targeted pressure point relief for shoulders and hips. Available in Twin through King sizes, all CertiPUR-US® certified, with delivery information, sleep trial terms, and manufacturer warranty information available.

Medium Serta® iComfort® Side Sleeper
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  • SERTA® iComfort® 13" Medium Firm Memory Foam Mattress
    FLASH SALE EXCLUSIVE OFFER LIMITED STOCK
    Serta iComfort 13-inch medium firm memory foam mattress, light blue swirl-quilt top, charcoal sides Serta iComfort Logo
    • CoolFeel™ Fabric
    • 5 ZoneResponse™ Design
    • Perfect Conform™ Graphite Memory Foam
    • Deep Reaction® Max Gel Memory Foam + iComfort® Gel Memory Foam
    • CertiPUR-US® certified foams.
    • 100% Canada Assembled
    Twin XL In stock for fast delivery $1,799
    Double/Full SOLD OUT
    Queen SOLD OUT
    Compare at $3,099
    King $2,499
    Online availability icon In-Stock Only 7 left!
    In-Store availability icon On Display:
    Free delivery availability icon Free delivery to M5H 2N1 as soon as Tomorrow, Sep 14
    Pickup available icon Only Pickup available to
    M5H 2N1

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How to Choose the Right Mattress for Side Sleeping

Side sleepers need a mattress that cushions the shoulders and hips while keeping the spine in neutral alignment. A surface that is too firm creates pressure points at the shoulder and hip, while one that is too soft allows the midsection to sag. Most sleep specialists recommend a medium to plush firmness for side sleepers, soft enough to let the shoulder sink in, yet supportive enough to maintain spinal alignment from neck to tailbone.

Construction type matters as much as firmness. Eurotop and pillowtop mattresses, which make up 55% of our side sleeper collection, add a sewn-in comfort layer that contours around pressure points without the slow-response feel of foam. Memory foam models offer deeper conforming for targeted pressure point relief, while hybrid mattresses combine pocket-coil support with foam comfort layers for sleepers who want contouring plus airflow. The side sleeper mattresses at National Mattress are manufactured in Canadian factories 🍁 and carry CertiPUR-US® certified foams.

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Pressure Point Relief

93% of our side sleeper mattresses feature targeted pressure point relief, designed to reduce shoulder and hip tension through conforming foam or pillowtop layers.

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Medium & Plush Comfort

Choose from 76 medium and 73 plush models, the firmness range recommended by sleep experts for side sleeping.

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Adjustable Base Compatible

97% of our side sleeper mattresses work with adjustable bases, elevate the head or knees to further reduce pressure while sleeping on your side.

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Canadian-Made Quality

91% manufactured in Canada from brands including Sealy, Serta, Beautyrest, and Springwall, with free delivery nationwide.

Frequently Asked Questions About Side Sleeper Mattresses

What firmness is best for side sleepers?
Medium to plush firmness is ideal for most side sleepers. These comfort levels allow the shoulder and hip to sink in enough to maintain neutral spinal alignment while preventing pressure buildup. Lighter-weight side sleepers may prefer plush, while heavier sleepers often do better with medium.
Which mattress type relieves shoulder and hip pain for side sleepers?
Eurotop/pillowtop and memory foam mattresses provide the deepest contouring for side sleeper pressure points. Pillowtops add an integrated comfort layer that cushions immediately, while memory foam moulds gradually to your body shape. Both can reduce shoulder and hip tension significantly.
Can side sleepers use an adjustable base?
Yes, 97% of the side sleeper mattresses at National Mattress are compatible with adjustable bases. Elevating the head 10–15° or raising the knees slightly can reduce spinal pressure and improve circulation while side sleeping.
What sizes are available in side sleeper mattresses?
National Mattress carries side sleeper mattresses in Single/Twin, Twin XL, Double/Full, Queen, King, and RV Short Queen sizes. Compare current prices on the product page for the size, brand and construction you prefer. All sizes ship with free express delivery across Canada.
How do I choose between a pillowtop and memory foam mattress for side sleeping?
Pillowtops offer immediate cushioning with a traditional spring-supported feel, ideal if you change positions at night. Memory foam conforms more closely and excels at targeted pressure relief, but responds more slowly. Hot sleepers may prefer a hybrid that combines foam contouring with coil airflow.
Does National Mattress offer a sleep trial on side sleeper mattresses?
Before choosing a mattress, read the sleep trial terms. Review the manufacturer warranty information for the model you prefer, and consult the price match policy when comparing offers.

Not Sure Which Side Sleeper Mattress Is Right for You?

Our non-commissioned sleep experts can match your body type, sleep habits, and budget to the ideal mattress, no sales pressure, just honest guidance.

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