Bed Bases by FORM
Better Support Starts Here
Two ways to support your mattress: an adjustable base that moves with you, or an upholstered foundation that holds steady.
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Foundation or Adjustable Base?
Both support every FORM mattress. Here’s how they differ.
| Feature | FORM Upholstered Foundation | FORM Adjustable Bed Base |
|---|---|---|
What it does | Flat, stationary support that replaces a box spring and frame | Motorized head, foot, lumbar and pillow-tilt positions |
Height | 13 inches | Zero-clearance or on stackable legs |
Capacity | 750 lb | 750 lb per base |
Extras | Tool-free assembly, faux wood legs | Massage, night light, USB-A and USB-C |
Sizes | Twin to California King | Twin XL, Full, Queen, King, California King, Split King |
Warranty | 1-year limited | 10-year limited |
Best for | A flat bed with a finished look | Reading, TV, working in bed, couples who want separate positions |
Bed Base FAQs
A foundation is flat, stationary support that stands in for a box spring and bed frame. An adjustable base is motorized: it raises the head and foot, and on the FORM Adjustable Bed Base, the lumbar and pillow zones too. Both support every FORM mattress.
No. FORM mattresses work on solid foundations, slatted bases with proper support, platform beds and adjustable bases. A box spring isn’t required.
Choose the FORM Upholstered Foundation for a flat bed with a finished, furniture look. Choose the FORM Adjustable Bed Base if you read, work or watch TV in bed, or want lumbar support, massage and one-touch positions.
Yes. Every FORM mattress works on an adjustable base, including the FORM Adjustable Bed Base.
Two Twin XL mattresses on two Twin XL bases. The FORM Adjustable Bed Base Split King ships as two Twin XL bases that move together or independently. For a flat bed, use two Twin XL FORM Upholstered Foundations.
Yes. The FORM Upholstered Foundation comes in California King. The FORM Adjustable Bed Base comes in Twin XL, Full, Queen and Split King.
Both ship free by ground carrier and usually arrive in 5–10 business days. Bed bases are final sale once delivered. If yours arrives damaged or defective, contact us and we’ll make it right under warranty.
Build Your Bed From the Bottom Up.
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5–10 business days
Up to 10-Year Warranty
On the FORM Adjustable Bed Base
Fits Every FORM Bed
FORM Core to FORM Prime X