The listings include common convertible styles: 3-in-1, 4-in-1, and 5-in-1 cribs.
Most cribs are made from wood-based materials — commonly pine, engineered wood or wood composites, and pine with veneers; some simply list the material as "wood (frame)."
Many models offer four mattress-height settings (some list a dedicated "newborn" position); a smaller number of models offer three adjustable positions.
Common conversions shown are to toddler beds and daybeds. Some full-size convertible models also convert to a full-size bed with headboard (and optional footboard), and at least one mini crib example converts to a twin-size bed.
Many listings show a suggested age range of 0–6 years, while at least one model lists a suggested age of 0–3 years.
