Features & Specs how can we help you?read our FAQs or search by topic Ordering & Shipping My Orders Shipping & Delivery Payment & Security Usage & Care Assembly & Conversions Care & Maintenance Replacement Parts Product Details Features & Specs Materials & Construction Safety & Certifications About Ubabub By Product Type Cribs Conversion Kits Mattresses Product Details > Features & Specs Do your cribs come with mattresses? What size mattress do your cribs take? What is a 2-in-1 vs a 3-in-1 convertible crib? What is your warranty for furniture? What is your warranty for mattresses?