Does this mattress work on an adjustable base and without a box spring?

Yes to both. The 1200 PostureSense pocket coils bend with an adjustable base at the head and foot without harm, and the bed is listed adjustable-compatible. No box spring is needed; any firm, flat surface works, including a platform bed or slats under 3 inches apart. It is the tallest in its line at 15.5 inches, so a low-profile or 4-inch foundation is the usual choice to keep the deep europillowtop from sitting awkwardly high.

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