Difficult to put together! The instructions for this bed is just straight trash. BUT once the bed was all put together it looks great. My toddlers are so excited to have big girl beds. I got the the recommended 6 inch mattress (Wayfair medium firm memory foam mattress) fits great on top bunk but the trundle can hardly be pulled out or returned. If you plan on putting a Matt protector on I strongly recommend purchasing a thinner mattress because now I have to remove sheets and protector everytime I put it away.‍♀️