Sealy Brilliant Nights 2-Stage Crib Mattress
The Sealy Brilliant Nights 2-Stage Crib Mattress is 5.5 in thick, per Sealy Baby (Kolcraft). A 204-coil two-stage mattress with a firmer infant side, a softer toddler side, a wipe-clean waterproof cover and a 50 year warranty.
- $129.99List price
- 5.5 inThickness
- InnerspringCore
- Two-stageSides
How the Brilliant Nights 2-Stage (EM442) 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.
Within 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 Brilliant Nights 2-Stage (EM442) apart
Measured against the 82 two-stage crib mattresses we compare, from each maker's published specs.
Next to its closest matches
- Sealy Baby FlexCool 2-Stage (EM443)Next to it, the Brilliant Nights 2-Stage (EM442) is 0.3 in thinner.
- Sealy Baby (Kolcraft) Cozy Rest 2-Stage (EM255)Next to it, the Brilliant Nights 2-Stage (EM442) is 0.3 in thicker; $30 more.
- Sealy Baby (Kolcraft) Posturepedic Evolution 2-Stage (EM612)Next to it, the Brilliant Nights 2-Stage (EM442) is 0.3 in thinner.
Fit check
| Size, per the maker | 52 × 27.5 × 5.5 in |
|---|---|
| Sides | Two: a firmer infant side and a toddler side, per the maker |
Crib types on Cribpicks that take a full-size crib mattress:
Listed features
- 204 coils
- 50 year warranty
- Firmer infant side
Worth checking
- Wipe clean only
Where to buy the Brilliant Nights 2-Stage (EM442)
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) Brilliant Nights 2-Stage (EM442) | |
|---|---|
| Type | Two-stage crib mattress |
| List price | $129.99 |
| Size | 52 × 27.5 × 5.5 in |
| Thickness | 5.5 in |
| Core | Innerspring: 204 coils, 6 EverEdge pillars, steel edge borders |
| Coils | 204 |
| Two-stage | Yes, infant and toddler sides |
| Firm for infants | Yes, per the maker |
| Waterproof | Yes |
| Washable cover | No |
| Certifications | GREENGUARD Gold |
| Warranty | 50 years, workmanship and materials |
| Made in | USA (US and imported parts) |
Compare the Brilliant Nights 2-Stage (EM442) with
How each closest rival differs from the Brilliant Nights 2-Stage (EM442), from the makers' specs.
- Sealy BabyFlexCool 2-Stage (EM443)5.8 in thick$129$129.99
- 0.3 in thicker
- Sealy Baby (Kolcraft)Cozy Rest 2-Stage (EM255)5.3 in thick$99$99.99
- 0.3 in thinner
- $30 less
- Sealy Baby (Kolcraft)Posturepedic Evolution 2-Stage (EM612)14.7 lb5.8 in thick$129.99
- 0.3 in thicker
- Sealy Baby (Kolcraft)Posturepedic Grow 2-Stage (EM610)14.7 lb5.8 in thick$129.99
- 0.3 in thicker
Brilliant Nights 2-Stage (EM442): questions answered
From Sealy Baby (Kolcraft)'s published specs, last checked 2026-11-02.
Will the Sealy Brilliant Nights 2-Stage Crib Mattress fit my crib?
The maker lists it at 52 × 27.5 × 5.5 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 Brilliant Nights 2-Stage Crib 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 Brilliant Nights 2-Stage Crib Mattress made of?
204 coils, 6 EverEdge pillars, steel edge borders, with 204 coils. The maker lists GREENGUARD Gold.
Is the Sealy Brilliant Nights 2-Stage Crib 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
- Sealy Baby (Kolcraft)Prestige Sleep 2-Stage Antibacterial (EM461)12.3 lb5.5 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
- EvolurSleep Comfort Balance Plus Supreme 260 Coil Inner Spring Crib and Toddler Mattress10 lb6 in thick$89.99
- Sealy Baby (Kolcraft)Posture Haven 2-Stage (EM444)13.4 lb5.5 in thick$109.99
- EvolurSleep Triple Stage Air Flow Crib Mattress with Natural Fiber9 lb6 in thick$129.99
Where these specs come from
Last checked 2026-11-02. Spot something wrong? Tell us. Read our editorial and safety policy and corrections.