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Full mattress dimensions

Full measures 54 by 75 inches in the selected US nominal profile.

Published by BedFit Atlas · Updated 2026-09-20

Dimensions at a glance

US · Nominal bed dimensions
Size	Width (in)	Length (in)	Area (sq ft)
FullReviewed 2026-09-18	54	75	28.1

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1. Full

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Full measures 54 by 75 inches in the selected US nominal profile. The cited Queen adds 6 inches of width and 5 inches of length, increasing the mattress footprint by 750 square inches. Those are differences between the listed rectangles, not a prediction of how a particular bed frame will fit. Width affects the space beside the bed; length affects the space at its foot. A smaller mattress can leave more room, but a wide nightstand or projecting frame can use that margin. Compare Full and Queen at the same scale, then enter your actual furniture and preferred clearances in the room tool. Supplier specifications still govern the purchased mattress, frame and bedding. This page does not infer comfort or suitability from a size label.

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Sources and review dates

Data reviewed 2026-09-18.

Bed Sizes and Mattress Dimensions: Guide + Comparison Chart — Purple Purple, US mattress dimensions guide; selected nominal reference values, not product measurements or universal tolerances.
Published room-fit geometry, version 1 — Bed Dimensions