Finding the perfect mattress can be a challenge, especially when navigating the differences between local and international standards. If you are considering a Japanese-sized mattress for your home in Singapore, understanding these specific dimensions is essential for both your sleep quality and your furniture compatibility.

Understanding the Japanese Sizing System

Japanese mattresses are typically longer than the standard Singaporean sizes. While Singaporean mattresses generally have a length of 190 cm, Japanese mattresses usually measure 195 cm. This extra $5\text cm$ can make a significant difference for taller individuals, but it also means you must be careful when choosing a bed frame.

Japan Semi-Double Mattress in Singapore

The semi double mattress Singapore-double is a unique Japanese size that is increasingly popular in Singapore for its versatility.

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Dimensions: Approximately 120 cm x 195 cm.

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Best For: Single sleepers who want more room than a super single (107 cm wide) but don’t have space for japan king mattress in singapore a queen.

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It is often considered a "luxury single" rather than a true double for two adults.

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Japan Double Mattress in Singapore

The Japanese double is a compact alternative to the local queen size.

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Dimensions: Approximately 140 cm x 195 cm.

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Best For: Couples in smaller HDB flats or studio apartments who find a standard Singapore queen (152 cm wide) too bulky.

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It provides a snug fit for two people while saving precious floor space.

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Japan King Mattress in Singapore

If you are looking for maximum surface area, the Japanese king is a substantial upgrade.

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Dimensions: Approximately 194 cm x 195 cm.

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Best For: Families with young children or couples who value personal space.

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Note that this is wider than the standard Singapore king (183 cm wide), so a custom or Japanese-specific bed frame is mandatory.

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Where to Test Japan Size Mattresses in Singapore

Because these sizes are non-standard in the local market, I recommend visiting specialized showrooms rather than general furniture malls. Testing the firmness and fit in person is the best way to ensure the mattress meets your ergonomic needs.

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Muji Singapore: Known for their minimalist aesthetic, Muji follows Japanese sizing for all their bed frames and mattresses. You can visit their flagship stores at Plaza Singapura or Jewel Changi to experience these dimensions firsthand.

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Sleep Space: This retailer specializes in various international sizes and often carries Japanese dimensions. They have an experience studio at 37 Lorong 23 Geylang where you can compare Japan and Singapore sizes side-by-side.

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Heveya®: where to test japan size mattress in singapore For those interested in organic materials, Heveya offers customizable sizes, including Japanese dimensions, at their showrooms in Tiong Bahru and Tang Plaza.

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Choosing a Japanese-sized mattress in Singapore offers a unique balance of length and space-saving widths. Whether you opt for a compact semi-double or a sprawling Japan king, always remember to match your mattress with the correct bed frame and bedding. Since Singaporean bedsheets are cut for 190 cm lengths, you may need to source your linens from Japanese brands or look for "deep pocket" versions to accommodate the extra length.