Best Sealy Baby Crib Mattresses

TL;DR: The Sealy Baby Posturepedic Grace Hybrid offers a 2‑stage, 204‑coil hybrid with soy‑enhanced foam, breathable cotton cover and GREENGUARD Gold certification for $129.99.

This mattress’s standout feature is its dual‑firmness hybrid design: a firm infant side and a softer toddler side, featuring 204 innerspring coils topped with soy‑enhanced memory foam. At 5.75 in tall, 27.25 in wide and 51.63 in long, it fits standard cribs while the waterproof, breathable cotton cover adds both comfort and protection.

Compared with the other four Sealy options, the Grace Hybrid sits in a premium price tier and weighs 9.2 lb—lighter than the Firm Rest (14.63 lb) and Cozy Cool (17.47 lb) but heavier than the Butterfly (7.0 lb) and Orion (8.25 lb). It shares hybrid construction with Firm Rest, Orion and Cozy Cool, yet distinguishes itself with soy‑enhanced foam and a breathable cotton cover, whereas Firm Rest and Orion use antibacterial waterproof covers and the Butterfly relies on laminate cover foam only.

Reviewers consistently note the mattress grows with a child, praising the dual‑firmness transition and the supportive coil‑foam combo. The GREENGUARD Gold and ASTM certifications reassure parents about indoor air quality and safety. A few users mention the 9.2 lb weight makes occasional moving a bit more effort, especially compared with lighter foam‑only models.

Best for: Parents who want a single mattress that grows from newborn to toddler, value safety certifications, and are willing to invest in premium hybrid support.

Avoid if: You need a lightweight, easily portable mattress or are constrained by a tight budget.

TL;DR: The Sealy Baby Orion offers a lightweight 8.25‑lb, 2‑stage hybrid mattress with antibacterial waterproof cover and GREENGUARD GOLD certification at $79.99, making it a solid budget pick for growing infants.

The Orion’s most eye‑catching spec is its 8.25‑lb weight combined with a 5.0‑in profile, which keeps the mattress easy to lift while still fitting standard full‑size cribs. Its dual‑sided design gives a firm infant side for safe sleep, and the antibacterial waterproof cover adds a layer of protection against stains and microbes.

Compared with the other four Sealy options, the Orion sits in the middle of the weight range: it’s heavier than the Sealy Butterfly (7.0 lb) but lighter than the Firm Rest (14.63 lb), Posturepedic Grace Hybrid (9.2 lb) and Cozy Cool (17.47 lb). At 5.0 in tall, it’s taller than the Butterfly’s 4.5 in height yet shorter than the other three models, which range from 5.25 in to 5.75 in. The Orion also offers a 2‑stage construction and breathable build, features that the Butterfly lacks, while matching the other Sealy Baby models on those fronts.

Reviewers consistently praise the mattress’s feather‑light feel, noting that flipping the mattress or changing sheets is “effortless.” Reviewers give the firm infant side positive remarks for supporting safe‑sleep guidelines. On the downside, users point out that the 5‑6 in foam core feels thinner than the thicker coil‑based alternatives, which could limit long‑term support as the child grows. The absence of a steel perimeter edge also surfaces as a durability concern for families planning to keep the mattress for several years.

Beyond comfort, the Orion carries GREENGUARD GOLD, ASTM and CPSIA certifications, signaling low chemical emissions and compliance with safety standards. Its hybrid construction blends a fiber core with 204 coils, and the manufacturer markets the antibacterial waterproof cover as stain‑resistant and mold‑proof. A 20‑year manufacturer warranty rounds out the value proposition.

Best for: Parents who need a lightweight, easy‑to‑handle 2‑stage crib‑to‑toddler mattress with antibacterial protection.

Avoid if: You want a mattress with a steel edge system for added durability or a thicker coil‑based core for long‑term support.

TL;DR: The Sealy Baby Firm Rest offers a hybrid, 204‑coil core, antibacterial waterproof cover and a firm 5.25‑inch profile at 14.63 lb, earning a strong 4.6‑star rating for everyday crib use.

This mattress’s key feature is its 204‑coil hybrid construction, paired with an antibacterial waterproof cover. At a modest 5.25 in height, it delivers a firm sleeping surface while staying slim enough for most standard cribs. The 51.63 in length and 28.0 in width fit the typical crib footprint, and the 14.63 lb weight gives it a solid, stable feel.

Compared with the other four options, the Firm Rest is heavier than the Sealy Butterfly (7.0 lb) and the Sealy Baby Orion (8.25 lb), yet lighter than the Cozy Cool model (17.47 lb). Its length matches the Grace Hybrid, Orion, and Cozy Cool at 51.63 in, while the Butterfly runs a touch longer at 52.0 in. Like Orion, it provides an antibacterial waterproof cover, whereas the Butterfly’s laminate cover lacks those protections. The hybrid design puts it in the same camp as the Grace Hybrid and Cozy Cool, while the Butterfly remains an all‑foam, non‑hybrid option. All three of the hybrid‑enabled models, including this one, share the same 204‑coil count, giving them comparable support.

Reviewers note the firm feel benefits newborns who need a stable surface, and many highlight the waterproof, antibacterial cover for easier nighttime clean‑ups. Some users point out the mattress’s weight; the 14.63 lb mass can make lifting it into the crib feel like a workout. The limited‑lifetime warranty and GREENGUARD GOLD certification give parents confidence in durability and low‑emission materials.

Best for: Most users looking for a well‑reviewed, reliable mainstream option

Avoid if: You have limited desk space or need portability

TL;DR: The Sealy Baby Cozy Cool Hybrid offers a 2‑stage firm‑to‑soft design, cool gel foam, and a waterproof breathable cover, but its 17.47 lb weight and $199.99 price make it a premium‑priced, heavier option.

The standout spec is the 2‑stage hybrid construction that pairs 204 innerspring coils with cool gel‑infused memory foam, delivering a firm infant side and a cooler, softer toddler side. At 5.5 in high, 51.63 in long and 27.25 in wide, it fits standard cribs while the cool cotton cover adds breathability and waterproof protection.

Compared with the other four mattresses in this roundup, the Cozy Cool is heavier than the Posturepedic Grace Hybrid (9.2 lb) and the Firm Rest (14.63 lb), and noticeably bulkier than the foam‑only Butterfly (7.0 lb) and Orion (8.25 lb). It also carries a higher price tag than those alternatives, positioning it as the most premium‑priced choice. Material‑wise, it uses cool gel foam instead of the soy‑enhanced foam found in the Grace Hybrid, and it lacks the antibacterial cover that the Firm Rest and Orion provide.

User reviews frequently praise the firm infant side for meeting AAP guidelines and the cooling gel side for keeping toddlers comfortable through warm nights. Reviewers also note that the lifetime warranty boosts confidence. However, several comments mention the mattress’s heft, describing it as cumbersome to lift when changing sheets, and some parents point out the absence of an antibacterial rating despite its GREENGUARD GOLD certification.

Best for: Parents who want a single mattress that grows from newborn to toddler, value a cool‑gel surface, and appreciate a lifetime warranty.

Avoid if: You need the lightest possible crib mattress, require antibacterial protection, or are highly price‑sensitive.

TL;DR: The Sealy Butterfly is a lightweight, extra‑firm, waterproof crib mattress that weighs just 7 lb, measures 4.5 in × 52 in × 28 in, and costs $99.02, making it a solid budget pick for newborns to toddlers.

What stands out first is the mattress’s modest weight of 7.0 lb combined with a low profile of 4.5 in in height. Its dimensions of 52.0 in length and 28.0 in width fit standard U.S. full‑size cribs, and the laminate cover fully waterproofs the mattress with a zip‑off design that wipes clean with a damp cloth.

Compared with the four other Sealy Baby options, the Butterfly is the lightest (all peers weigh 8 lb or more) and the thinnest (peers range from 5.0 in to 5.75 in in height). It also lacks the 2‑stage convertibility, breathable cover, and hybrid construction that the Firm Rest, Orion, Posturepedic Grace Hybrid, and Cozy Cool all provide. In short, it’s the simplest, most budget‑focused model in the lineup.

Parents appreciate the ease of handling – reviewers note that the 7‑lb weight makes sheet changes and moving the mattress a breeze. The 100 % waterproof cover earns praise for quick clean‑ups, and the extra‑firm CertiPUR‑US foam meets ASTM crib mattress standards for safety. On the downside, users report a 48‑hour expansion period after unrolling, and some find the ultra‑firm feel a bit rigid for toddlers who like a softer surface.

Additional context includes GREENGUARD GOLD and CertiPUR‑US certifications, confirming low emissions and safe foam composition. AmazonUs/KOLBD manufactures the mattress in the USA, though a warranty length isn’t listed in the available data.

Best for: Entry‑level buyers or those on a tight budget

Avoid if: You need a plush, soft feel, a convertible 2‑stage mattress, or immediate full expansion