The bed frame parts are all placed inside of the headboard. Took close to 2 hours to put together the first time. It's definitely not difficult to put together, just time consuming. The instructions are easy to follow and have all what you need to get it done. For reference, I'm in my early 30s and semi-handy. I've only slept on it for 3 days using a mattress without a box spring and so far no complaints. It appears to be sturdy and no signs of wobbliness. 

My only two complaints are the overall frame is too low to the ground (5" from the floor) and there is a gap if you use a 9" or 10" mattress. I suggest using a mattress that's at least 13" thick or add a box spring to fill in the gap. Purchased the colors navy blue and gray and the photos depict its true color. I love the velvety feel of the headboard.