The grey king size does not come with the buttons but it looks fabulous. It feels so sturdy and well made. We have an adjustable base and it works fine with this bed. We almost panicked though because we thought they forgot to send us the side pieces! But turns out they ship the side pieces stored INSIDE the back of the headboard. Call me dumb but I have never seen that before. Weird but also cool. We recommend this bed. Fantastic find.