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Crib Mattresses

Regulation sets the crib mattress size: a standard full-size crib mattress measures about 27.25 inches wide by 51.625 inches long and is no more than 6 inches thick under the shared Canadian and US standard, so it fits any standard crib snugly. The safe-fit check is a gap of no more than about two fingers to each crib side. For infants, firm is a safety requirement rather than a comfort preference: a safe surface resists the impression of a small hand and springs back quickly, since soft surfaces raise suffocation risk for newborns. A waterproof or wipeable cover keeps the core hygienic, and only a tight-fitting sheet belongs in the crib, with no pillows, bumpers, or loose bedding. Standard toddler-bed mattresses share the same dimensions, so one mattress carries through both stages. Always follow current Health Canada safe-sleep guidance.

Prioritise safety first: an infant crib mattress should be firm and flat, not plush or soft, so it cannot conform to a baby's face. It must fit snugly with no more than about two fingers of gap to the crib sides, and be waterproof and easy to wipe clean...


For infants, firm is a safety requirement, not a comfort preference. A safe crib mattress resists the impression of a small hand and springs back quickly, so a baby's head stays on the surface rather than sinking in. Soft or plush surfaces raise suffocation...


Most parents want a waterproof or water-resistant crib mattress because it blocks leaks, spills, and accidents from soaking into the core, which keeps it hygienic and easy to clean. While not every product is fully waterproof, a wipeable surface or a...


A standard full-size crib mattress measures about 27.25 inches wide by 51.625 inches long and is no more than 6 inches thick, under the shared Canadian and US standard. Because the size is regulated, a standard crib mattress fits any standard crib snugly...


Yes. Standard crib mattresses and standard toddler-bed mattresses share the same dimensions, roughly 27.25 by 51.625 inches, so one mattress carries through both stages. Many cribs convert into toddler beds using the same mattress, which saves a purchase...


Foam crib mattresses are lighter and easier to lift for sheet changes, while innerspring crib mattresses use a coil core that tends to feel firmer and heavier. Both are appropriate for infants as long as the surface is genuinely firm and flat. Foam can...


For innerspring crib mattresses, more coils and a heavier-gauge wire generally mean a firmer, more supportive surface, which is what an infant needs. Coil counts vary widely between products, so use coil count as a rough firmness signal rather than a...


Look for a genuinely firm, flat surface, a snug fit with no more than about two fingers of gap to the crib, and a waterproof or wipeable cover for easy cleaning. Check that thickness stays within the standard 6-inch limit and that the cover seams are...


National Mattress carries a range of mattresses across sizes and budgets, and current crib or children's options can change over time. The best step is to check the website for available infant and toddler products or to ask our store staff, who can ...



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