At my firm....get it.....we have to sell their base with a Temp. But it is an Ergo base so its just Tempur Sealy swinging their big dick around keeping us in our place. But the best base for it is what I have......a Mantua Contemporary III. The lumbar portion is amazing and this feature is not on any of the Ergo bases. Plus it has a bunch of different color lights for the under the bed lighting (there so you can keep your room pitch black except for the constant under the bed light....no bright light flipped when you sleep walk to the bathroom to wake you up). I would just head into a place that carries them, but you may have to ask for the "900" base as it is called in our favorite money laundering company. If the lumbar doesn't do anything then just buy any decent base from Ergo, Reverie, Leggett and Platt or Mantua. Head and foot, a few memory settings, etc. Tell the Temp store you have a captains bed. Then buy the base separately. Warranty will be fine. Answer from Morning_Star_Ritual on reddit.com