Does the MLILY WellFlex 1.0 memory-foam mattress need a box spring?

No traditional box spring is needed. This all-foam bed performs best on any solid, flat, supportive surface: a platform bed, slatted base with narrow gaps, or a bunkie board. It is also adjustable-base compatible, so it flexes with an adjustable frame. Avoid an old sagging spring foundation, which can void the warranty.

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