Pure Core 2-Stage Crib Mattress + Hybrid Quilted Waterproof Cover Color:White It's a mini design but

It's a mini design but will last into the big kid years with an optional twin bed conversion

For smooth movement

Zipper allows you to fasten seat belt through the Nest

testing above required and voluntary standards for furniture (ASTM F2057-23 standard)

Pure Core 2-Stage Crib Mattress + Hybrid Quilted Waterproof Cover Color:White It's a mini design butFoster healthy sleep for your babe with a Pure Core Crib Mattress with HYBRID waterproof quilted cover. Combining two covers into one, the Hybrid cover protects your crib mattress with a non vinyl waterproof backing and features a soft cotton face for baby's comfort. For your peace of mind and babe's safety, all Babyletto mattresses are GREENGUARD Gold Certified, hypoallergenic, and free from chemical flame retardants. Features GREENGUARD GOLD