CONSTRUCTION Crafted of solid poplar wood, veneers and MDF. All wood is kiln-dried, a process that ensures that the furniture will never split, warp, crack or mildew. Mattress platform offers four height options to accommodate your growing baby. Complete your crib. Shop our favorite mattresses. When purchasing a crib, it is strongly recommended to purchase the toddler bed conversion kit at the same time. Larkin 4-in-1 crib converts in the following ways: (1) Crib; (2) Toddler bed with guardrail (conversion kit sold separately); (3) Full-sized bed with headboard only (metal bed frame sold separately); (4) Full-sized complete bed with headboard, footboard and side rails (full bed conversion kit sold separately). Crib is made in a Fair Trade Certified™ facility. This contract-grade item is manufactured to meet the demands of commercial use in addition to residential. Learn More. Imported. CARE & SAFETY All Pottery Barn Kids juvenile products are tested at 3rd party CPSC accredited labs to meet or exceed all industry voluntarily and regulatory safety requirements. Parents should ensure a safe environment for the child by checking regularly to see that every component is properly fastened and securely in place. Do not over tighten fasteners, as this may cause distortion or breakage. This crib may be used until your child can easily climb out or is taller than 35 in. (89cm). We do not recommend the use of chemical cleansers, abrasives or furniture polish. ASSEMBLY View Assembly Instructions