Simmons Platinum Crib Mattress Review: Nestled Exclusive Platinum
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The crib is built, the tiny sleepers are washed, and now you're facing a wall of crib mattresses and wondering how one rectangle can involve so many decisions. Should it be firm or soft? Breathable or waterproof? One side or two? Your baby will sleep on this every night, so it makes sense to take your time.
The Simmons Nestled Exclusive Platinum Crib Mattress + Sheet Protector is the Simmons option for parents who want one mattress to last from the newborn months into the toddler years. The Simmons Platinum crib mattress has two firmness levels, a breathable fibre core, a cover that zips off for washing and a water-repellent liner. A mattress protector comes in the box.
This review breaks down the Simmons Nestled Exclusive Platinum's firmness, breathability, comfort, convenience, specs, and overall usability so parents can determine whether it's the right fit for their family.
TL;DR
The Simmons Platinum crib mattress is a dual-sided, standard-size crib mattress that measures 52 inches by 28 inches by 6 inches. One side is firmer for infants and the other is slightly softer for toddlers. When your child is ready, you flip it instead of buying a second mattress.
The core is made of highly air-permeable, high-denier fibre with a built-in olefin grid that helps air move through. Simmons describes the grid as naturally antibacterial. The washable zip-off cover and water-repellent liner make everyday messes easier to deal with, and a mattress protector is included.
It's a strong choice for Canadian families who want a breathable crib mattress that's easy to clean and can go from the first night in the crib through the toddler bed stage.
Specs
These specs for the Simmons Nestled Exclusive Platinum Crib Mattress come from the product details.
- Dimensions: 52 inches long, 28 inches wide and 6 inches thick.
- Size: Standard crib size. It's designed to fit standard cribs and to move with you to a toddler bed.
- Firmness: Dual-stage, with a firmer side for infants and a slightly softer side for toddlers.
- Core: Highly air-permeable high-denier fibre with a built-in olefin grid.
- Cover: Removable outer cover that zips off for washing.
- Liner: Water-repellent liner that helps keep moisture and spills away from the core.
- What's included: The mattress and a mattress protector.
The product page doesn't list the mattress weight or warranty details. Our in-store experts can help with those.
Is the Simmons Platinum Crib Mattress Dual Sided?
Yes. The Simmons Platinum crib mattress is a dual-sided crib mattress, which means each side has a different firmness. The firmer side is for infants and the slightly softer side is for toddlers.
- Firmer infant side: Babies need a firm, flat sleep surface, and Health Canada's safe sleep guidance recommends exactly that. A firm surface keeps a baby from sinking into the mattress.
- Softer toddler side: Toddlers move around more and are heavier, so a bit more cushion makes the mattress more comfortable as they get older.
- One mattress, two stages: Flipping the mattress gives you a toddler-friendly surface without buying a new one.
Keep the firmer side facing up for the whole infant stage. Check the Simmons label for which side is which and when to flip. Our guide to dual-sided vs. single-sided crib mattresses explains how to decide if a two-stage design suits your family.
How Breathable Is the Simmons Platinum Crib Mattress?
Breathability is one of the biggest strengths of the Simmons Nestled Exclusive Platinum. A breathable crib mattress lets air pass through its core instead of trapping heat and moisture, which helps keep the sleep surface fresh.
- High-denier fibre core: Denier measures how thick a fibre is, and higher-denier fibres are thicker and sturdier. Simmons uses highly air-permeable high-denier fibre so the core lets air through while staying firm and durable.
- Built-in olefin grid: Olefin is a tough synthetic fibre. Here it forms a grid inside the core that lets air flow freely, and Simmons describes it as naturally antibacterial.
- Water-repellent liner: The liner helps keep spills and leaks from soaking into the core. That protects the breathable materials underneath.
For a closer look at airflow and sleep, read why breathability matters in Simmons mattresses.
Comfort for Your Baby and Toddler
The Simmons Platinum crib mattress aims to balance safety and comfort at each stage. Your baby gets the firm support they need first, and a little more give comes later.
- Supportive from day one: The firmer infant side gives a stable, flat surface for newborn and baby sleep.
- Room to grow: The softer side makes a comfortable toddler crib mattress once your child is older and more active.
- Holds its shape: Simmons designed the mattress to keep its shape over years of use, including the move from crib to toddler bed. A mattress that holds its shape keeps the surface even and the fit snug.
Ease of Use for Parents
Overnight diaper leaks and spit-up happen sooner or later. The Simmons Nestled Exclusive Platinum has a few features that make those nights easier.
- Washable zip-off cover: You can unzip the outer cover and wash it, so a crib mattress with a washable cover saves you from scrubbing the whole mattress.
- Water-repellent liner: If something gets past the sheet, the liner helps keep moisture from reaching the core. That's good for hygiene and helps the mattress last longer.
- Protector included: You get a mattress protector in the box, so you have an extra layer between your baby's crib sheets and the mattress.
- Simple stage change: Moving to the toddler side just means flipping the mattress. There's nothing to buy or put together.
Many parents keep a spare fitted sheet and one of our mattress protectors on hand. That way, a middle-of-the-night change takes minutes.
Will the Simmons Platinum Crib Mattress Fit Your Crib?
The Simmons Platinum crib mattress is a standard crib size, 52 inches by 28 inches by 6 inches, and is designed to fit standard cribs. That includes many convertible cribs that later become a toddler bed, so the mattress can make the move with your child. It's not made for mini cribs or bassinets, which use smaller mattresses.
Before you buy, check your crib manufacturer's instructions for the recommended mattress size and maximum thickness. Once the mattress is in, make sure it fits snugly with no gaps between the mattress and the crib sides, and use only a fitted sheet. If you're unsure, bring your crib's model name to any of our six stores and our team will help you check the fit.
Design, Materials, and Everyday Details
Beyond firmness and airflow, the Simmons Nestled Exclusive Platinum is built to last.
- Durable construction: Simmons chose all of the materials for resilience, so the mattress keeps performing as your child grows.
- Layered protection: A washable outer cover, a water-repellent liner and an included protector work together to keep the breathable core clean.
- Straightforward design: One standard size and two clearly defined stages keep it simple. That's helpful when you're making a lot of nursery decisions at once.
If you're still comparing options, our guide on how to choose a crib mattress covers what to look for at each stage.
Pros & Considerations
Pros
- Dual-stage firmness: A firmer side for infants and a slightly softer side for toddlers.
- Breathable core: Air-permeable high-denier fibre with an olefin grid for airflow.
- Easy cleanup: The zip-off cover can be washed.
- Moisture protection: The water-repellent liner helps keep spills out of the core.
- Protector included: A mattress protector comes in the box.
- Long-term use: It fits standard cribs and moves with your child to a toddler bed.
Considerations
- Standard size only: It won't fit mini cribs, playards or bassinets.
- Water-repellent, not waterproof: Use the included protector to keep the core protected from bigger leaks.
- Know which side is up: Check the Simmons label so the firmer infant side stays up for babies.
- Check your crib: Make sure a 6-inch-thick mattress matches your crib manufacturer's guidelines.
Final Thoughts
The Simmons Platinum crib mattress covers what most first-time parents care about. It has a firm infant side, a softer toddler side and a breathable fibre core, and it's easy to clean.
If you want a breathable crib mattress that lasts from your baby's first night through the toddler bed years, the Simmons Nestled Exclusive Platinum is well worth a spot on your list. Visit any Snuggle Bugz store to feel both sides for yourself. Our team is always happy to help you find the right mattress for your crib and your family.