How to Choose a Crib

Good news first: every new crib sold in the United States must meet strict federal safety standards. Since a major 2011 rule, that includes a ban on drop-side cribs and tougher requirements for hardware, slats, and mattress support. So a new crib from a reputable retailer starts from a safe baseline — choosing is mostly about fit, longevity, and pairing it with the right mattress, not hunting for the "safest" frame.

This guidance follows CPSC crib-safety information; we don't test cribs in a lab. If you're weighing a crib against a bassinet for the newborn stage, our bassinet vs crib guide covers that, and our best cribs roundup shows the field.

Buy new, and check the safety basics

Buy a crib that meets current standards — which effectively means buying new from a trusted seller, or being very careful with a used one. If you consider a hand-me-down crib, confirm it meets current standards (no drop-side), isn't under a recall, has all its original hardware and instructions, and shows no damaged or missing slats. When in doubt with an older crib, don't use it. On any crib, the two structural checks are simple:

• Slat spacingshould be no more than about 2 and 3/8 inches apart — roughly the width of a soda can — so a baby's head can't fit through or get trapped. New cribs meet this by design; it's a used-crib check.
• No cutouts or decorative gaps in the headboard or footboard where a limb or head could catch.

The mattress is half the decision

A crib is only as safe as the mattress in it. The mattress must be firm, flat, and fit snugly— no more than two fingers of gap between the mattress and the crib frame on any side. A gap is an entrapment hazard, and a soft mattress is a suffocation hazard. Standard full-size cribs and standard full-size mattresses share dimensions so they fit by design, but always do the two-finger check. Our best crib mattresses guide covers the firm-and-snug requirement in detail.

Adjustable mattress height

Most cribs offer several mattress heights. Use a higher setting for a newborn so you're not bending as far, then lower the mattress before your baby can pull to standso they can't climb or tip over the rail. Being able to drop the mattress to its lowest position is a feature worth having, and knowing to use it is a safety habit worth building.

Convertibility: how long do you want it to last?

Many cribs convert to later beds, labeled by how many configurations they offer:

• 3-in-1: crib, toddler bed, daybed.
• 4-in-1: adds a full-size-bed conversion for years more use.

Convertibility can stretch the value across years, but note that the conversion kits (toddler rail, full-size-bed rails) are usually sold separately, so factor that into the real cost. If you don't plan to convert, a simpler crib is fine.

Materials and certification

Solid-wood cribs tend to feel sturdier and last through conversions and second children. Some cribs add GREENGUARD Goldcertification, meaning the finished product was tested against strict chemical-emissions limits — a meaningful signal for furniture in a room where your baby breathes for thousands of hours. We note certifications only where the maker documents them.

Skip the add-ons

Here's where marketing collides with safety. For a safe sleep space, the crib holds a firm mattress, a tight fitted sheet, and nothing else— no bumpers (padded or mesh), no pillows, no blankets, no positioners, no stuffed animals. These add-ons are sold as cozy or safe, but current safe-sleep guidance is to leave them out entirely. For warmth, use a sleep sack instead of a blanket. The full list is in our safe-sleep guidelines.