Choosing a crib with a trundle offers convenient sleep space for siblings or visiting caregivers, while maintaining a compact footprint. The selections below prioritize GREENGUARD Gold certification, adjustable configurations, and practical under-crib storage—ensuring both safety and versatility as your child grows. Each option provides storage, solid construction, and flexible conversion paths to toddler, daybed, or full-size beds.
Summary of selected products:
| Product | Brand | Key Feature | Certifications |
|---|---|---|---|
| Carter’s by DaVinci Colby 4-in-1 Convertible Crib with Trundle Drawer in Walnut | DaVinci | 4-in-1 with undercrib storage | Greenguard Gold |
| Carter’s by DaVinci Colby 4-in-1 Convertible Crib with Trundle Drawer in White | DaVinci | 4-in-1 with undercrib storage | Greenguard Gold |
| Delta Children Mercer 6-in-1 Convertible Crib with Storage Trundle | Delta Children | 6-in-1 with wheeled trundle | Greenguard Gold |
| Carter’s by DaVinci Colby 4-in-1 Convertible Mini Crib with Trundle Drawer | DaVinci | Mini crib with undercrib storage | Greenguard Gold |
| Delta Children Mercer 6-in-1 Convertible Crib with Storage Trundle (Bianca White/Grey) | Delta Children | 6-in-1 with wheeled trundle | Greenguard Gold |
DaVinci Colby 4-in-1 Convertible Crib with Trundle Drawer – Walnut

The DaVinci Colby 4-in-1 convertible crib offers a complete growth path, with four adjustable mattress positions to adapt as your baby grows. It converts to a toddler bed, daybed, and full-size bed via compatible conversion kits. The trundle drawer adds practical undercrib storage for sheets, blankets, and other essentials. This model is GREENGUARD GOLD certified, reflecting low chemical emissions and a healthier sleep space for infants and toddlers.
DaVinci Colby 4-in-1 Convertible Crib with Trundle Drawer – White

Similar to the walnut variant, this crib provides a 4-in-1 configuration with undercrib storage. The White finish complements modern nurseries and coordinates with a variety of decor styles. Mattresses height can be adjusted across four levels, helping you adapt as your child learns to sit and stand. GREENGUARD GOLD certification indicates a commitment to safer indoor air quality.
Delta Children Mercer 6-in-1 Convertible Crib with Storage Trundle – Grey

This Delta 6-in-1 model emphasizes versatility with a wheeled trundle for easy access and cleaning. It converts to a toddler bed, daybed, sofa, and two full-bed configurations. The trundle’s wheels and a non-toxic finish align with safety standards, and GREENGUARD GOLD certification supports a healthier living space by limiting chemical emissions.
DaVinci Colby Mini Crib with Trundle – Washed Natural

The mini crib variant trades size for portability, while still delivering a trundle drawer for storage. Four adjustable mattress positions support a growing baby, and the crib converts to a mini toddler bed, daybed, and twin-size bed with appropriate conversion kits. The product emphasizes sustainable New Zealand pinewood and TSCA-compliant engineered woods, alongside GREENGUARD GOLD certification for safer indoor air.
DaVinci Colby Mini Crib with Trundle – White

This white mini crib mirrors the design and functionality of the Washed Natural mini variant. It provides four mattress positions and converts into a mini toddler bed, daybed, and twin-size bed, with conversion kits sold separately. The build uses sustainable wood and engineered components and maintains GREENGUARD GOLD certification for lower emissions in nurseries.
Delta Mercer 6-in-1 Convertible Crib with Storage Trundle – Bianca White/Grey

This Bianca White/Grey edition emphasizes a clean two-tone look with robust 6-in-1 versatility and a storage-enabled trundle. Like its siblings, it features GREENGUARD GOLD certification and JPMA safety standards. The expandable design supports transition to full-size sleeping arrangements as your child grows, while the trundle remains accessible for daily use.
Buying Guide
Key considerations when selecting a crib with a trundle:
- Safety certifications: GREENGUARD Gold and JPMA indicate lower chemical emissions and adherence to safety standards. Check for a clean sleep environment and robust hardware.
- Growth trajectory: Look for 4- to 6-in-1 configurations that convert to toddler beds, daybeds, and full-size beds. Confirm availability of conversion kits if needed.
- Undercrib storage: A large, smoothly sliding trundle adds practical space for sheets, blankets, and toys. Check for wheels and braking mechanisms for stability.
- Mattress height adjustments: Adjustable mattress positions help you lower the mattress as your baby grows and gains mobility. Ensure the range fits your nursery setup.
- Materials and finish: Opt for solid wood or sturdy engineered wood from sustainable sources. Non-toxic finishes help maintain air quality in nurseries.
- Size and room layout: Mini cribs fit smaller spaces but may limit bed options later. Standard full-size cribs offer broader conversion paths, while mini options suit compact rooms.
- Cleaning and maintenance: Smooth edges and accessible trundle design ease regular cleaning and sheet changes. Consider finish durability for long-term use.
- Assembly and warranty: Check furniture assembly requirements and the manufacturer’s warranty terms for coverage and replacement parts.
Overview from multiple perspectives:
- Best for small spaces: Mini cribs with trundles save footprint while providing essential storage and growth options.
- Best for long-term growth: 6-in-1 or 4-in-1 models offer extensive conversions, reducing the need for new furniture as the child grows.
- Safety-first approach: GREENGUARD Gold certified products emphasize safer indoor air, a priority for nurseries and bedrooms shared with infants.