Sturdy but super low. Not much higher than the seat of a standard chair and we have a thick mattress. There is not enough room between the frame base and headboard to be able to add a box spring. The material is a blended fabric and seems like it will be somewhat resilient. Overall, it's modern, basic and appropriate for a low profile bedroom set. And, good grief, the shipping carrier could have been a little gentler with the package...it was partially open and had several punctures and scrapes...but the bed frame was not damaged.