Trundle daybed worked great with our mattresses! My husband put it together but he said the frame is not built the strongest and it was missing minor parts but he could adapt with parts given. It's perfect for our grandchildren. I wish the sides were a bit higher so you could rest a pillow and prop yourself up while laying in bed. The price is right and the metal frame wasn't too showy plus it gave extra room for us to use the mattresses we already had so not to buy more. (That maybe the reason why there isn't enough frame on the sides to support yourself if you want to prop yourself up while laying in bed, I used regular size mattresses.) I also chose it because the weight limit was 300lbs better than most daybeds.