Have you ever had an antique bed where you found it was almost impossible to put the bedding on? This is because mattress sizes have changed and become about 3 inches longer than when the bed was first sold. The solution to this is to get the side rails lengthened. We do this for every iron bed we sell so that beautiful duvet cover you bought slides nicely over the foot of the bed and doesn't look squished like in the photo. I couldn't even get the box spring to go all the way down. What was a major headache can be solved by a simple solution!