First of all, I’m falling in love with my new bed frame! The style is beautiful, yet subtle. When purchasing the product, however, I didn’t see the width of the metal slats (about 6”). Any mattress that lays on top of a slatted frame should be at most 4”. What I ended up doing was placing wooden slats under the sides of the frames and ones in between for the extra support! Worked wonders, and I’m very satisfied with the results! Hope this review is useful to any who were in the same position I was.