This Milk Street 4-in-1 crib offers a transitional, flat top and vertical batten’s applied much like those you’d find on the sides of a New England Barn. This Milk Street crib can be considered modern, or traditional, making it transitional enough to use in any nursery! Through this collection, you will find great height and great girth; true of hand-built structures; true of Relic. All of our 4-in-1 cribs are convertible and are built from solid, sturdy, grade-A hardwood. Designed with stationary sides and no moving parts for safety. This crib fits a standard size crib mattress with mattresses sold separately. After your nursery needs have been met, your crib transitions into a toddler bed, daybed, and adult full-size bed. These four modes allow your crib to convert and grow with your child. All of our high-back convertible cribs (4-in-1) offer a 3 position, metal mattress support system. When your baby is first born, you will want to keep your mattress at the top or highest position. As your baby starts standing, you will know it is time to lower the heights. By the time your baby begins to pull up, usually around 5-6 months, the mattress height should be at its lowest point. Keep your mattress height in its lowest position when using your crib as a tot bed. Another name for this type of 4-in-1 crib is “high back’ crib, meaning it has a back or headboard that is higher than the other three sides. A high back crib makes a beautiful full-size bed because of the nice high back which will ultimately serve as a headboard when attached to a standard metal bedframe (frame sold separately).