9 Best Full-Size Crib Mattresses (November 2026)
The best full-size crib mattresses include the Delta Children Serta Perfect Slumber Dual Sided Crib for waterproof dual-stage use, the Graco Premium Foam Baby Crib & Toddler for washable foam cleanup, and the Delta Children Serta Perfect Start Limited Dual Sided for recycled fiber value.
On this page (6 sections)
- The best full-size crib mattress for each nursery need
- How do you choose between foam, fiber and coil mattresses?
- What firmness should a full-size crib mattress have?
- Do waterproof covers make crib mattress care easier?
- How do you check a standard full-size crib mattress fit?
- Which full-size crib mattress should you buy?
The best full size crib mattress for most families is the Delta Children Serta Perfect Slumber, because its firm fiber core, waterproof cover on both sides and dual crib-to-toddler design cover the main daily needs. The Graco Premium Foam is a strong choice if a removable machine-washable cover matters most.
A standard full-size crib mattress is close to 52 x 28 in, but small differences in width and thickness still matter. For a side-by-side size comparison, see crib mattress versus twin mattress sizes.
Measure your crib before ordering and check the fit again after the mattress is fully expanded.
For a broader checklist, use this crib mattress comparison guide. If you prefer compressed delivery, compare the best crib mattress in a box options.
Our picks at a glance
-
1
Best for waterproof dual-stage useDelta Children Serta Perfect Slumber Dual Sided Crib
9.7/10 our score
See it on Amazon -
2
Best for washable foam cleanupGraco Premium Foam Baby Crib & Toddler
9.6/10 our score
See it on Amazon -
3
Best for recycled fiber valueDelta Children Serta Perfect Start Limited Dual Sided
9.5/10 our score
See it on Amazon
- 4
Best for dual foam comfortCheck it - 5
Check itSealy Baby Flex Cool 2 Stage Crib
Best for coil support and airflow - 6
Check itLetmxiu 5" Crib Mattress and Toddler Mattress
Best for simple firm foam - 7
Check itDream On Me 2-in-1 Serene Snooze Baby
Best for extra-firm fiber support - 8
Check itDream On Me Twilight Baby Crib Mattress
Best for reversible innerspring support - 9
Check itBabelio Breathable Crib Mattress
Best for breathable dual-sided foam
The best full-size crib mattress for each nursery need
The Delta Children Serta Perfect Slumber is the strongest all-around pick, while Graco is easier to wash and Dourxi offers a foam-based stage change. The remaining mattresses suit buyers who prefer recycled fiber, coils, extra-firm support or a lower profile.
Our score weighs specs, features and buyer feedback against what you're shopping for. We compared firmness, materials, standard full-size dimensions, waterproof protection, cleaning needs and crib-to-toddler use.
| Product | Best for | Size | Core | Cover | Our score |
|---|---|---|---|---|---|
| Delta Children Serta Perfect Slumber Dual Sided Crib | waterproof dual-stage use | 27.5 x 52 x 5 in | Sustainably sourced fiber core | Waterproof vinyl | 9.7 |
| Graco Premium Foam Baby Crib & Toddler | washable foam cleanup | 52 x 27.6 x 4.5 in | CertiPUR-US certified polyurethane foam | Polyester, removable and washable | 9.6 |
| Delta Children Serta Perfect Start Limited Dual Sided | recycled fiber value | 52 x 27.5 x 5.5 in | Fiber core made from recycled bottles | 9.5 | |
| Dourxi Crib Mattress | dual foam comfort | 52 x 27.5 x 6 in | Gel memory foam and high-density foam | 9.4 | |
| Sealy Baby Flex Cool 2 Stage Crib | coil support and airflow | 52 x 28 x 5.75 in | Pocketed coil construction | Breathable cotton | 9.3 |
| Letmxiu 5" Crib Mattress and Toddler Mattress | simple firm foam | 52 x 27.6 x 5 in | High-density foam | 9.2 | |
| Dream On Me 2-in-1 Serene Snooze Baby | extra-firm fiber support | 52 x 28 x 5 in | Polyester fiber | Waterproof vinyl | 9.1 |
| Dream On Me Twilight Baby Crib Mattress | reversible innerspring support | 52 x 28 x 5 in | 88 heat-tempered Bonnell coils | 8.6 | |
| Babelio Breathable Crib Mattress | breathable dual-sided foam | 52 x 27.5 x 4.7 in | High-elastic foam and memory foam | Polyester, removable and washable | 8.4 |
Delta Children Serta Perfect Slumber Dual Sided Crib: Best for waterproof dual-stage use
Delta Children Serta Perfect Slumber Dual Sided Crib: Best for waterproof dual-stage use
- Firm fiber core
- Waterproof vinyl cover on both sides
- 27.5 x 52 x 5 in
- GREENGUARD Gold certified
A firm fiber-core mattress with waterproof covers on both sides. Flip it when your child moves from a crib to a toddler bed.
Pros
- Dual-sided waterproof cover
- Square corners
- Made in USA
Cons
- Fiber core is less contouring than memory foam
The Delta Children Serta Perfect Slumber has a firm fiber core and measures 27.5 x 52 x 5 in. For more newborn-specific picks, see the best crib mattresses for newborns.
Its core is made from sustainably sourced fiber, and the brand says it uses material made from upcycled plastic bottles.
Both sides have a waterproof vinyl cover. That makes the mattress practical when you want to flip it for toddler-bed use while keeping a wipe-clean surface available.
Square corners help the mattress sit securely inside a standard crib or toddler bed. The 5 in thickness also keeps sheet changes manageable, and the lightweight design is easier to lift than the coil picks.
Delta Children states that the mattress is GREENGUARD Gold and JPMA certified. It is made in the USA and carries a 7-year warranty.
Choose this mattress if you want a firm fiber option with waterproof protection on both sides. It is less suited to buyers who specifically want foam or coil construction.
Graco Premium Foam Baby Crib & Toddler Bed Mattress: Best for washable foam cleanup
Graco Premium Foam Baby Crib & Toddler: Best for washable foam cleanup
- Firm polyurethane foam
- Removable machine-washable cover
- Waterproof sleep surface
- 52 x 27.6 x 4.5 in
This firm foam mattress has a waterproof sleep surface and a removable cover that can be machine washed cold and hung to dry.
Pros
- Machine-washable cover
- Foam core
- Fiberglass-free construction
Cons
- Cover cannot go in the dryer
The Graco Premium Foam mattress uses a firm polyurethane foam core and measures 52 x 27.6 x 4.5 in. Its lower profile suits a lighter foam option that still fits a standard full-size crib and toddler bed.
The waterproof sleep surface blocks leaks, while the removable polyester cover can be machine washed cold on a delicate cycle. Use no bleach, hang the cover to dry, and avoid the dryer.
The foam is CertiPUR-US certified, and the cover is OEKO-TEX STANDARD 100 certified. The mattress is also GREENGUARD Gold certified and UL Formaldehyde Free Validated.
This is the best fit for parents who want a washable cover and a firm foam feel. Allow up to 48 hours for full expansion after unboxing, and wait until the mattress reaches its full shape before checking the fit.
The 4.5 in height can simplify sheet changes compared with thicker picks here. It also leaves more room inside the crib.
Check that the fitted sheet stays snug after washing, since a loose sheet can bunch. Fold the cover back fully before washing so the zipper and seams are easy to reach.
Let the cover dry completely before putting it back on.
Delta Children Serta Perfect Start Limited Dual Sided: Best for recycled fiber value
Delta Children Serta Perfect Start Limited Dual Sided: Best for recycled fiber value
- Firm recycled fiber core
- Dual-sided design
- Waterproof cover
- 52 x 27.5 x 5.5 in
A firm dual-sided mattress with a waterproof cover and fiber core made from recycled water bottles.
Pros
- Dual-sided design
- Waterproof cover
- 7-year limited warranty
Cons
- Thicker than some 5 in models
The Serta Perfect Start Limited measures 52 x 27.5 x 5.5 in and uses a firm fiber core made from recycled bottles. Its 5.5 in thickness gives it a little more height than the 5 in fiber models here.
The waterproof cover helps with everyday cleanup. Its dual-sided design also lets you flip the mattress as your child moves from crib use to toddler-bed use.
Delta Children states that the mattress is GREENGUARD Gold and JPMA certified. It is made in the USA and carries a 7-year limited warranty.
Choose this mattress if you want recycled fiber construction, waterproof protection and dual-stage use in one design. Compare the 5.5 in thickness with your crib's mattress support and sheet fit before ordering.
The fiber core is designed to hold a firm shape from night to night. That suits parents who prefer fiber over foam.
The extra half inch of thickness is not a big jump. It can still affect how a sheet fits.
Measure the crib first, then check the corners after the mattress is placed inside. A snug fit should leave no gap at the sides.
Dourxi Crib Mattress: Best for dual foam comfort
Dourxi Crib Mattress: Best for dual foam comfort
- Firm infant side
- Softer memory foam toddler side
- Removable washable cover
- 52 x 27.5 x 6 in
A 6 in dual-sided foam mattress with a firmer infant side and a memory foam side for toddlers.
Pros
- Removable washable cover
- Dual-sided comfort
- CertiPUR-US certified foam
Cons
- Thicker than most picks here
The Dourxi Crib Mattress measures 52 x 27.5 x 6 in and uses a triple-layer foam design with gel memory foam, open-cell memory foam and a high-density support core. Its stated firmness is medium firm.
The dual-sided design has a firmer, flat infant side and a softer memory foam toddler side. Use the side that matches your child's stage and the manufacturer's directions.
Its removable cover is washable. The mattress is compressed for transport, so allow at least 72 hours for expansion at room temperature.
It uses CertiPUR-US certified foam and is free from phthalates, lead and mercury. It suits families who prefer foam layers and a softer toddler surface.
At 6 in, it is the thickest mattress in this group. That height can change how close the top sits to the crib rail, so follow your crib maker on safe height.
The open-cell foam is meant to move air through the comfort layer. The gel layer is aimed at heat, but neither layer replaces a fitted sheet.
Keep the sheet clean and check it for wear.
Sealy Baby Flex Cool 2 Stage Crib and Toddler Bed Mattress: Best for coil support and airflow
Sealy Baby Flex Cool 2 Stage Crib: Best for coil support and airflow
- Firm infant side
- Softer toddler side
- Cotton cover
- 204 interwoven coils
A dual-stage coil mattress with a breathable cotton cover, waterproof barrier and reinforced border edges.
Pros
- Coil support
- Cotton cover
- PVC-free waterproof barrier
Cons
- Heavier than foam and fiber options
The Sealy Baby Flex Cool measures 52 x 28 x 5.75 in and uses 204 heat-tempered interwoven coils. A firm infant side and softer toddler side support its two-stage design.
The cotton cover includes airflow channels, while the mattress has a PVC-free waterproof barrier. Reinforced border edges and corner pillars help maintain a flat sleep surface and support a secure sheet fit.
Sealy states that the mattress is GREENGUARD Gold certified and ASTM tested. It is made in the USA and has a limited lifetime warranty on workmanship and materials.
Choose this model if you prefer coil construction and a breathable cotton cover. At 14.9 lb, it is heavier than the foam and fiber options, so rotating or changing sheets may take more effort.
The coil count and steel frame give this model a different feel from foam. It is built to support a flat surface over time.
The cotton cover adds a softer top feel. Airflow channels in the cover help air move across the surface.
They do not make the mattress a loose bedding item. Use only a fitted sheet.
The waterproof barrier is there for spills and leaks. Wipe it clean and let it dry fully before remaking the bed.
Letmxiu 5" Crib Mattress and Toddler Mattress: Best for simple firm foam
Letmxiu 5" Crib Mattress and Toddler Mattress: Best for simple firm foam
- Firm high-density foam
- 52 x 27.6 x 5 in
- Soft brushed fabric surface
- Vacuum packed
A straightforward firm foam mattress for a standard crib and toddler bed, with a 5 in profile.
Pros
- Firm support
- Standard full-size dimensions
- Easy rotation guidance
Cons
- No waterproof cover feature is specified
The Letmxiu mattress measures 52 x 27.6 x 5 in and uses high-density foam with a firm feel. It fits standard cribs and toddler beds and has a brushed fabric surface.
The mattress arrives vacuum packed. Letmxiu recommends cutting the plastic wrap carefully and allowing 24 to 72 hours for full expansion.
The brand also recommends flipping or rotating the mattress every 2 to 3 months. That care step matters if you want to keep the surface used evenly over time.
This is a sensible pick if your priority is a standard-size, firm foam mattress with a simple design. Its product information does not specify a waterproof cover, so consider a fitted waterproof protector that is approved for your crib setup.
High-density foam is chosen here for steady support. It helps the surface stay firm when your baby rolls.
The brushed fabric surface feels softer than vinyl. That can suit parents who prefer fabric on top.
Rotation every few months spreads use across the surface. Mark the start date on a calendar.
Open the vacuum pack in a clear space. Foam can spring back fast once air gets in.
Dream On Me 2-in-1 Serene Snooze Baby Crib Mattress: Best for extra-firm fiber support
Dream On Me 2-in-1 Serene Snooze Baby: Best for extra-firm fiber support
- Extra-firm infant side
- Toddler side
- Waterproof vinyl cover
- 52 x 28 x 5 in
A dual-sided fiber mattress with an extra-firm infant side, toddler surface and wipe-clean waterproof cover.
Pros
- Made in USA
- Waterproof cover
- 10-year limited warranty
Cons
- Extra-firm feel may not suit every toddler preference
The Dream On Me Serene Snooze measures 52 x 28 x 5 in and uses a polyester fiber core. Its extra-firm infant side changes to a toddler mattress surface as your child grows.
The waterproof vinyl cover wipes clean with a damp cloth. Lock-stitched binding adds a defined edge around the cover, which helps the surface handle routine sheet changes.
Dream On Me states that the mattress is GREENGUARD Gold and BSA certified, tested for 16 CFR 1632 and 1633 flammability standards, and made without lead and phthalates.
It is made in the USA and carries a 10-year limited warranty. Pick it if you want extra-firm fiber support and a wipe-clean cover, but compare the feel with softer toddler-side options before moving to that stage.
At 6 lb, this is a light option for lifting and sheet changes. That helps when you need to flip the mattress.
The fiber core holds its shape without foam layers. The vinyl cover is smooth and easy to wipe.
Use a damp cloth and let the surface dry. Do not soak the cover.
Check the binding and corners now and then. Strong stitching helps the edge keep its shape.
Dream On Me Twilight Baby Crib Mattress: Best for reversible innerspring support
Dream On Me Twilight Baby Crib Mattress: Best for reversible innerspring support
- 88 Bonnell coils
- Reversible design
- Waterproof vinyl cover
- 52 x 28 x 5 in
A reversible innerspring mattress with firm support, fiber padding and a waterproof vinyl cover.
Pros
- Coil support
- Reversible
- Made in USA
Cons
- Heavier than the Serene Snooze fiber mattress
The Dream On Me Twilight measures 52 x 28 x 5 in and has 88 heat-tempered Bonnell coils, two 1 in fiber padding layers and a 6-gauge steel border wire. Its firm construction is reversible, so both sides can be used.
The waterproof vinyl cover wipes clean with a damp cloth and helps protect against spills, stains and odors. The mattress has a stated weight limit of 50 lb.
Dream On Me states that the Twilight is GREENGUARD Gold and BSA certified, made without lead and phthalates, and made in the USA. It carries a 5-year limited warranty.
Choose it if you want innerspring structure in a reversible 5 in mattress. It weighs 11.5 lb, so it is not as easy to lift as the lighter fiber models.
The Bonnell coils give a spring-based feel that differs from foam. The fiber padding layers sit over the coil unit, and the steel border wire helps the edge stay firm.
That edge can make sheet fitting feel more stable. Both sides are meant for firm support, so flip it only when the surface needs a change.
Wipe the vinyl cover clean after spills and dry it fully before putting the sheet back on.
Babelio Breathable Crib Mattress: Best for breathable dual-sided foam
Babelio Breathable Crib Mattress: Best for breathable dual-sided foam
- Firm infant side
- Memory foam toddler side
- Removable machine-washable cover
- 52 x 27.5 x 4.7 in
A dual-sided foam mattress with air holes, a removable washable cover and a waterproof lining.
Pros
- Machine-washable cover
- Dual-sided design
- Fiberglass-free
Cons
- Plush toddler side needs careful stage selection
The Babelio mattress measures 52 x 27.5 x 4.7 in and combines high-elastic foam with memory foam. Its dual-sided design has a firmer infant side and a memory foam toddler side.
Air holes are built into the mattress, and the polyester knitted cover is removable and machine washable. A waterproof non-woven lining helps stains wipe away from the mattress surface.
The mattress is fiberglass-free and passes 16 CFR 1632 and 1633 flammability tests. Its 4.7 in thickness is among the lowest here, but you should still confirm that it fits your crib without gaps.
This mattress suits buyers who want washable fabric, a breathable design and two foam surfaces. The toddler side is plush, so use the firmer infant side for the infant stage.
The lower profile can help with crib rail height. It also makes lifting the mattress a little easier.
The high-elastic foam forms the support base. The memory foam adds a softer top on the toddler side.
Air holes are meant to help air move through the structure. They work best with a clean fitted sheet.
Wash the cover as directed and let it dry fully. Check the waterproof lining for tears before each use.
How do you choose between foam, fiber and coil mattresses?
Choose fiber for simple firm support, foam for lighter handling and washable-cover options, and coils for spring-based structure. The best material depends on how much you value stage changes, cleaning access, mattress weight and the feel you want for toddler use.
Fiber models include the Delta Children Serta Perfect Slumber, Serta Perfect Start and Dream On Me Serene Snooze. They offer firm or extra-firm support, and several include waterproof covers.
Foam models include Graco, Dourxi, Letmxiu and Babelio. Graco has a removable machine-washable cover, Dourxi uses gel memory foam, and Babelio adds air holes and a washable cover.
Coil models include the Sealy Flex Cool and Dream On Me Twilight. Sealy uses 204 interwoven coils, while Twilight uses 88 Bonnell coils with fiber padding.
For another foam-focused comparison, see our best hybrid crib mattress guide.
What firmness should a full-size crib mattress have?
A crib mattress should provide a firm, flat sleep surface that fits the crib without gaps. The products here range from firm to extra firm, while Dourxi lists a medium-firm feel with a firmer infant side.
Do not choose a mattress only because the toddler side feels softer. Use a dual-sided mattress according to its stages, with the firmer infant side during infancy.
Firmness labels can differ between brands. One maker may call a mattress firm, while another may call a similar feel medium firm.
Read how the maker describes each side, since the flat infant side is for newborns and infants and the softer side is for an older child who can move.
Foam can give way under pressure, fiber tends to hold a more even surface, and coils add spring-based support. None should sag in the middle.
Check the surface after expansion and press gently across the center and edges. It should feel even, and a mattress that dips or loses shape should be replaced.
Fit is part of firmness. A mattress that is too small can leave gaps, while one that is too large can bow upward.
Measure the inside of the crib before you buy, then measure again after expansion.
The mattress should sit flat on the support, with room for a fitted sheet without pulling it tight. For toddlers, keep the sleep space clear and use the side that matches the stage.
If you have health concerns, ask a pediatric professional.
Do waterproof covers make crib mattress care easier?
Yes. Waterproof covers make wiping spills easier, while removable machine-washable covers allow more complete cleaning.
Delta Children, Dream On Me and Sealy use waterproof cover or barrier designs, while Graco and Babelio offer removable washable covers.
Care instructions differ. Graco's cover should be washed cold on a delicate cycle, without bleach, and hung to dry.
Dream On Me surfaces wipe clean with a damp cloth.
Waterproof protection helps with spit up, leaks and diaper changes. A vinyl cover can be wiped in seconds, and that speed matters at night.
Sealy uses a PVC-free barrier under its cotton cover to help stop liquid from reaching the coils. Wipe the surface and let it air dry.
A removable cover gives you a deeper clean. Graco and Babelio both let you unzip the cover and wash it in the machine.
Follow the exact cycle and temperature on the label.
Hang the Graco cover until it is fully dry, since a damp cover can hold odors. Wipe-clean covers still need regular care, and the cover should dry before you add a sheet.
A fitted sheet should match the mattress thickness and cover the corners without extra loose fabric. Wash sheets often, check the elastic, and replace a sheet that stretches out.
Keep blankets and toys out of the crib.
How do you check a standard full-size crib mattress fit?
Measure the inside length and width of the crib, then compare those measurements with the mattress dimensions. After placing the mattress inside, check that there are no gaps around the edges and that the surface lies flat.
Thickness also matters. The choices here range from 4.5 to 6 in, and some cribs or toddler beds may have specific support or height requirements.
The What Safety Standards Do Cribs Need to Meet? guide explains the wider safety checks. You can also read How Often Are Crib Safety Standards Updated? when reviewing current guidance.
Start with the crib, not the mattress. Use a tape measure inside the frame, measure from side to side and from end to end, and write both numbers down.
Then compare them with the mattress length and width.
Standard full-size cribs are close in size, but they are not all the same. A small gap can matter, and the mattress should fit snugly without pressing too hard on the sides.
Give compressed mattresses time to expand. Graco allows up to 48 hours, Dourxi allows at least 72 hours, and Letmxiu allows 24 to 72 hours.
Do not judge the fit on the first day, since foam can still be rising.
Fiber and coil models do not need the same wait. Still, check the fit after the mattress has settled in place.
Check the corners as well as the sides. Square corners should fill the space, while a rounded corner can leave a small opening.
Place the mattress flat on the support and look for bowing in the center.
Try the fitted sheet before the first night. It should pull down over each corner without leaving loose fabric.
Thickness affects rail height. A thicker mattress raises the sleep surface and can reduce the distance to the top rail, so follow your crib maker on the lowest safe setting.
Toddler beds need the same checks. The frame may be lower and longer, and a mattress that fits a crib may not fit a toddler bed.
Measure inside the rails and check for gaps again after you move the mattress.
Flip dual-sided models only when you change stages, then check the fit on the new side. The dimensions stay the same, but the surface feel changes.
Which full-size crib mattress should you buy?
Pick the Delta Children Serta Perfect Slumber if you want firm fiber support, waterproof protection and dual crib-to-toddler use. Choose Graco if a removable washable cover and foam core matter more.
Choose Sealy for coil support and a breathable cotton cover. Choose Dourxi or Babelio for dual-sided foam, and Dream On Me Twilight for a reversible innerspring design.
For brand-specific comparisons, read our best Delta Children crib mattress guide. If you are comparing Newton models, see Newton Original vs Waterproof crib mattress and these Newton Baby crib mattress reviews.
The Serta Perfect Start Limited is the simplest fiber alternative. It also uses recycled fiber and has a waterproof cover, and its 5.5 in thickness sets it apart from the 5 in Perfect Slumber.
Both models are made in the USA and carry a 7-year warranty. The choice comes down to thickness and cover preference.
For extra-firm support, consider the Dream On Me Serene Snooze. It has an extra-firm infant side, a wipe-clean vinyl cover, and a light 6 lb weight that makes flipping easier.
Its toddler side is firmer than some foam options, so think about the stage you will use it in most.
The Letmxiu is a clear pick for simple firm foam. It uses high-density foam in a standard size and has a brushed fabric surface.
It does not list a waterproof cover, so plan for a fitted waterproof protector if you need that layer. Rotate it every 2 to 3 months as the brand suggests.
Use your crib measurements as the final check. Widths range from 27.5 to 28 in and thickness from 4.5 to 6 in, so measure first, then match the mattress to your space and care routine.
Our top 3 picks at a glance
-
1
Best for waterproof dual-stage use
Delta Children Serta Perfect Slumber Dual Sided Crib
9.7/10 our score
See it on Amazon -
2
Best for washable foam cleanup
Graco Premium Foam Baby Crib & Toddler
9.6/10 our score
See it on Amazon -
3
Best for recycled fiber value
Delta Children Serta Perfect Start Limited Dual Sided
9.5/10 our score
See it on Amazon
Frequently asked questions
What size is a standard full-size crib mattress?
A standard full-size crib mattress is usually about 52 in long and 28 in wide, but the exact dimensions vary. The products here range from 52 x 27.5 in to 52 x 28 in, with thicknesses from 4.5 to 6 in.
Measure the crib and check for gaps before use.
Is foam or fiber better for a full-size crib mattress?
Foam, fiber and coil mattresses can all work for different preferences. Firm fiber models offer simple support, foam models can be lighter and easier to handle, and coil models add spring-based structure.
Compare the stated firmness, thickness, cover and cleaning method rather than choosing by material alone.
What should I look for in a crib mattress cover?
Look for a cover that matches your cleanup needs. Waterproof vinyl or waterproof sleep surfaces help with wiping spills, while removable machine-washable covers allow a deeper wash.
Always follow the care instructions, including water temperature, bleach restrictions and drying method.
Can a crib mattress be used in a toddler bed?
Several mattresses here are designed for both a crib and toddler bed. Dual-sided models may have a firmer infant side and a toddler side, while reversible models can be used on either side.
Confirm the mattress fits the toddler bed frame without gaps before moving your child.
