How much weight can be put on the Adjustable Base? August 12, 2020 14:12 The Adjustable Base can support up to 710 lbs, including your mattress. Related articles How do I use the Adjustable Base with a King or California King mattress? Can I use a bed frame with my new Adjustable Base? Will the Adjustable Base ship with my Helix Mattress? Do I need to use the retainer bar that was provided? What is Zero Gravity (ZG)?