Full Purple Flat Foundation
The box spring, reinvented — durable with effortless assembly
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Frequently asked questions
Full size bed frames typically range from 53” - 59” wide and 74” - 80” long.
In general, bed frames are 2” to 5" wider and longer than their corresponding mattress sizes. However, some lower profile styles, like platform bed frames, may be closer to the exact dimensions of the mattress.
We recommend purchasing a bed frame for your Purple Mattress right here at Purple. We offer a wide range of ergonomic bed frames, foundations, and adjustable bases engineered for sturdy, creak-free support. If you’d prefer to experience them in person — find our assortment of bed frames at the closest retailer near you.
Purple full size bed frames range between $399 for the Metal Platform and $710 for the Upholstered Bed Frame. We also offer the Adjustable Base in a full size, which is priced at $699. Please note prices are subject to change.
No. Given the substantial differences in length and width, a full size mattress will not properly fit on a queen size bed frame. To ensure proper support, your bed frame and mattress should be the same size.
No, mattresses and bed frames are sold separately, though we recommend checking out our sale page, as we often offer a discount when purchasing both.
If you’re looking for a full size mattress, check out our bestselling full size mattresses: The Purple Mattress® and the PurpleFlex™ Mattress. Or check out our customer favorite RestorePlus® Hybrid, with responsive coils for enhanced pressure relief and temperature balance.
Our patented GelFlex Grid is the only mattress material that instantly relieves pressure for pain relief and proven deeper sleep. The Grid also sleeps cool, minimizes motion transfer, and adapts to every body type + sleep position.
All Purple mattresses include free shipping, easy returns, a 100 night mattress trial, and a 10 year warranty.
Only our Upholstered Bed Frame includes both a foundation and headboard. Headboard brackets (compatible with most headboards) can be purchased separately for the Premium Smart Base and Premium Plus Smart Base.
Purple bed frames ship free of charge — except for addresses in Hawaii and Alaska.
Purple bed frames are designed with convenient under bed storage in mind. The Metal Platform provides 9” of under bed clearance, the Upholstered Platform provides 8”, and the Adjustable Base, Premium Smart Base, and Premium Plus Smart Base each have adjustable-height legs that offer a maximum of 12” clearance.
Note that under bed storage units are not included.
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