Sealy Baby Butterfly Posture Support Crib and Toddler Mattress
The Sealy Baby Butterfly Posture Support Crib and Toddler Mattress weighs 7 lb and is 4.5 in thick, per Sealy Baby (Kolcraft). An all-foam crib mattress with a zip-off waterproof cover.
- $109.99List price
- 4.5 inThickness
- 7 lbWeight
- FoamCore
How the Butterfly Posture Support stacks up
Against the 82 two-stage crib mattresses we track. The shaded band is where the middle half of them fall; the dot is this one.
Below the typical range for two-stage crib mattresses (7.5 lb to 14 lb).
Below the typical range for two-stage crib mattresses (5 in to 6 in).
Within the typical range for two-stage crib mattresses ($89.99 to $189.99).
What sets the Butterfly Posture Support apart
Measured against the 82 two-stage crib mattresses we compare, from each maker's published specs.
- 14th lightestof the 69 two-stage crib mattresses with it published: 7 lb
Next to its closest matches
- Sealy Baby Butterfly 2-Stage (EM906)Next to it, the Butterfly Posture Support is 2 lb lighter; 0.5 in thinner; $10 less.
- Serta (made by Delta Children) CloudCoolNext to it, the Butterfly Posture Support is 2.7 lb lighter; 0.5 in thinner; $10 more; no washable cover (the CloudCool has it).
Fit check
| Size, per the maker | 52 × 28 × 4.5 in |
|---|---|
| Sides | Two-stage, per the maker |
Crib types on Cribpicks that take a full-size crib mattress:
Listed features
- Low price
- Light at 7 lb
- Waterproof cover zips off
Worth checking
- Not described as two-stage
- Cover is spot clean only
- Thin at 4.5 in
Where to buy the Butterfly Posture Support
Prices and availability change. We may earn a commission from some links.
- Check for recalls: Search the agency's recall list with the model number and date code from the label: CPSC recall search.
- Safe sleep: see the AAP's guide to safe sleep and NICHD Safe to Sleep. Check the label and the maker's instructions, and ask your pediatrician about your child.
Full specs
| Sealy Baby (Kolcraft) Butterfly Posture Support | |
|---|---|
| Type | Two-stage crib mattress |
| List price | $109.99 |
| Size | 52 × 28 × 4.5 in |
| Thickness | 4.5 in |
| Weight | 7 lb |
| Core | Foam |
| Two-stage | Yes, infant and toddler sides |
| Waterproof | Yes |
| Washable cover | No |
| Certifications | GREENGUARD Gold, CertiPUR-US |
| Made in | USA |
Compare the Butterfly Posture Support with
How each closest rival differs from the Butterfly Posture Support, from the makers' specs.
- Sealy Baby (Kolcraft)Butterfly Waterproof7 lb4.5 in thick$109.99Compare side by side
- Sealy BabyButterfly 2-Stage (EM906)9 lb5 in thick$119.99
- 2 lb heavier
- 0.5 in thicker
- $10 more
- Serta (made by Delta Children)CloudCool9.7 lb5 in thick$99.99
- 2.7 lb heavier
- 0.5 in thicker
- $10 less
- EvolurSleep Triple Stage Air Flow Crib Mattress with Natural Fiber9 lb6 in thick$129.99
- 2 lb heavier
- 1.5 in thicker
- $20 more
Butterfly Posture Support: questions answered
From Sealy Baby (Kolcraft)'s published specs, last checked 2026-11-02.
Will the Sealy Baby Butterfly Posture Support Crib and Toddler Mattress fit my crib?
The maker lists it at 52 × 28 × 4.5 in, a full-size crib mattress. Check that the mattress size matches what your crib's maker specifies. Safe sleep: see the AAP's guide to safe sleep and NICHD Safe to Sleep. Check the label and the maker's instructions, and ask your pediatrician about your child.
How does a two-stage mattress like the Sealy Baby Butterfly Posture Support Crib and Toddler Mattress work?
One side is firmer for infants and the other is softer for toddlers. Follow the maker's instructions on when to switch sides. Safe sleep: see the AAP's guide to safe sleep and NICHD Safe to Sleep. Check the label and the maker's instructions, and ask your pediatrician about your child.
What is the Sealy Baby Butterfly Posture Support Crib and Toddler Mattress made of?
A foam core. The maker lists GREENGUARD Gold, CertiPUR-US. It weighs 7 lb, which matters when you change sheets.
Is the Sealy Baby Butterfly Posture Support Crib and Toddler Mattress waterproof or washable?
The maker says it has a waterproof surface or cover. The cover is not removable for washing.
Still wondering? Write to us at hello@cribpicks.com and we'll look it up.
More two-stage crib mattresses
- Dream On MeJoyful Blooms Breathable Foam Crib and Toddler Mattress6 lb5 in thick$79.99
- Sealy BabyOmni-Breathe (EM023)6.8 lb4.5 in thick$109.99
- Simmons KidsNaturally Crib and Toddler Mattress6 in thick$129$129.99
- Sealy Baby (Kolcraft)Soybean Foam-Core 2-Stage (EM710)5 in thick$129$129.99
- Dream On MeBreathable Orthopedic Firm Foam Standard Crib Mattress, White6 lb5 in thick$69.99
- Dream On MeBreathable Orthopedic Extra Firm Crib and Toddler Mattress6 lb5 in thick$69.99
Where these specs come from
Last checked 2026-11-02. Spot something wrong? Tell us. Read our editorial and safety policy and corrections.