Long lasting: Made of New Zealand pinewood, the Aden 4-in-1 Convertible Mini Crib is both durable and stylish. A clean design and small footprint allow it to fit into any nursery theme. All tools for assembly are included 4-in-1 Convertibility options: The Aden grows along with your child you can convert the crib into a mini daybed and a twin size bed and it has a convenient 3-position mattress support system (Twin Size Rail and Bed frame sold separately) Your safety matters: The Aden 4-in-1 is JPMA Certified to meet or exceed all safety standards set by the CPSC and ASTM. All of our products are tested by 3rd party labs for lead and other toxic elements to meet or exceed CPSC and ASTM safety standards Small wonder: Compact dimensions mean the Aden occupies a small footprint. But internally it is very spacious, making it ideal for small nurseries, co-sharing or when you have multiple kids to tend to MATTRESS COMPATIBILITY - Comes with 1" OEM Mattress pad. For additional aftermarket mattress purchase, we recommend any Dream On Me, non-toxic, Greenguard certified mini crib mattress