Twinkle Stars 3-in Mini/Portable Crib Mattress - Firm Waterproof

In this review of the Twinkle Stars 3-in Mini/Portable Crib Mattress, the bottom line is simple: parents who need a lightweight, firm, easy-to-clean mattress for a mini or portable crib will find dependable value here. The mattress is clearly designed for babies who require a firm sleep surface and caregivers who want a hygienic, low-maintenance option. Measured at 38L x 24W x 3H in, its portable size and waterproof cover make it a practical choice for nursery use and travel, and the safety certifications are the strongest single reason to consider it.

Key Features

• Fits mini and portable cribs: The mattress measures 38L x 24W x 3H and is built specifically for mini and portable cribs, so it fits those frames snugly when you measure first.
• Firm, supportive core: The thermo-bonded polyester fiber core provides a sustainably sourced, firm sleeping surface that supports infant sleep without excessive give.
• Waterproof, easy to clean: The durable vinyl cover is waterproof and wipes clean, helping keep the mattress hygienic after leaks or spit-up.
• Non-toxic construction: Manufactured without toxic fire retardants and free from harmful materials and chemicals for a safer sleep environment.
• Certified for low emissions: GREENGUARD Gold certification indicates low chemical emissions, which contributes to healthier indoor air in the nursery.
• Lightweight and portable: The slim 3-in profile and light weight make flipping, sheet changes, and moving the mattress straightforward for caregivers.

Who It's For

This mattress is a strong match for parents with a mini crib, portable crib, or those who need a travel-ready sleep surface that still meets safety expectations. It is especially suited for caregivers who prefer a firm, non-sinking core and a cover that can be wiped clean quickly after messes.

It is not designed for standard full-size cribs or Pack n Play style playards, so families using those should look for a mattress sized for standard cribs. Parents seeking a plush or memory-foam feel should also look elsewhere, since this model emphasizes firm support and safety over softness.

Pros & Cons

Pros

• Firm, supportive feel that most customers report as comfortable for infant sleep.
• Waterproof vinyl cover makes cleaning quick and helps prevent moisture damage.
• Sustainably sourced fiber core and GREENGUARD Gold certification offer peace of mind about emissions and materials.
• Lightweight and easy to move, useful for travel and sheet changes.

Cons

• The 3-in thickness is thin by some standards, so parents wanting a thicker or softer mattress may find it too firm.

Specifications

Brand	Delta Children
Model	Twinkle Stars 3-in Mini/Portable Crib Mattress
Dimensions	38L x 24W x 3H in
Core	Thermo-bonded polyester fiber (sustainably sourced)
Cover	Waterproof vinyl, wipes clean
Certifications	GREENGUARD Gold certified; meets flammability, lead, phthalate and CPSIA testing
Warranty	10 year trusted warranty

Our Verdict

The Twinkle Stars 3-in Mini/Portable Crib Mattress is a sensible, safety-focused choice for families who need a firm, portable sleep surface for mini or portable cribs. With a waterproof cover, sustainably sourced fiber core, and GREENGUARD Gold certification, it offers solid value for caregivers prioritizing hygiene and low emissions. Choose this mattress when fit and safety certifications matter most, but look for a thicker option if you prefer a softer feel.

Frequently Asked Questions

Will this mattress fit a standard crib?
No, it is designed for most mini and portable cribs only and measures 38L x 24W x 3H in.

Is the cover machine washable?
The mattress has a waterproof vinyl cover that wipes clean; it is not described as machine washable.

Is this mattress non-toxic?
Yes, it is GREENGUARD Gold certified, made without toxic fire retardants, and meets relevant safety testing.