Vintage Mid Century Modern King Bed.
Although there is standardization now in mattresses and box springs, you need to measure your bed frame to get an exact fit for a new mattress. Work from the inside edge of the frame and keep in mind that the mattress can slide under the shelf of the mid century king bed headboard in frames with shelves or bookcases. Subtract an inch from the length and width of the mid century king bed, as well as from the depth, so that by sliding the mattress in place there is enough room for separation.

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