US Full / Double vs JP Semi-Double
Detailed size comparison between US Full / Double and JP Semi-Double. See the dimensions side-by-side to ensure you buy the right mattress.
Visual Size Comparison
The US Full / Double is roughly 12% larger than the JP Semi-Double.
⚠️ Warning: Fitted sheets designed for the Semi-Double likely won't fit the Full / Double accurately.
Why comparing mattress sizes matters
International sizing standards vary significantly. A "King" in the US is not the same as a "King" in the UK or Australia. Mistaking these can lead to purchasing bedding that doesn't fit or rugs that look awkward in your space.
Quick Rule of Thumb:
US sizes tend to be wider and longer than their UK/EU counterparts. Always check the CM measurements before buying fitted sheets or frames.
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