When it comes to buying a new mattress for a bedroom at home, the first problem to solve is how to choose the most suitable mattress size in a space that only costs a lot of space to create a spacious bedroom. Faced with all kinds of information on the Internet, ranging from single and double mattress sizes to different sizes of mattresses from different places of production, no matter how clear your mind is, you will still have difficulty choosing. Let Sealy’s professional sleep consultants help you start a two-part journey to determine the size of your mattress!
Part One: Sorting out the various mattress sizes
1. Mattress size types
There are many types of mattress sizes, and the most common ones can be roughly divided into 7 types, namely:
- Single
- Single XL
- King Single
- Double
- Queen
- King
- Super King
2. International unified mattress standards
At present, there is no uniform mattress size standard around the world. Even if the mattresses are the same Single size, the actual sizes of mattresses from different origins are different. Taking the width of a King size mattress as an example, there is a difference of more than 30cm between the European standard of 160cm and the American and Canadian standard of 193cm. Therefore, when purchasing a mattress size, do not just use names such as Single or Double, but express it in actual size.
| size | European size (cm) | US and Canada specifications (cm) | Australian size (cm) | Hong Kong specifications (cm) |
| Single | 90 x 200 | 96.5 x 190.5 | 92 x 188 | 91 x 190 |
| Single XL | 120x200 | 96.5 x 203.5 | 92 x 204 | |
| King Single | 107 x 203 | |||
| Double | 140 x 200 | 137 x 190 | 138 x 188 | 137 x 183 |
| Queen | 152 x 203.5 | 153 x 203 | 152 x 190 | |
| King | 160 x 200 | 193 x 203.5 | 183 x 203 | 183 x 198 |
| Super King | 180 x 200 | 183 x 213.5 | 204 x 204 | 183 x 203 |
3. Hong Kong mattress size standards
When buying mattresses in Hong Kong, the measurement unit is usually feet. For example, Single is 3 feet (91cm), Double is 4 feet 6 inches (137cm), Queen is 5 feet (152cm), and King is 6 feet (183cm). The same width usually has 2 to 3 lengths to choose from. Take Sealy's Rillston mattress as an example. The King size is further subdivided into 5 options to cater for different people's needs.
Hong KongSealyMattress size chart
| size | Suitable for people | foot | centimeter |
| Single | Single | 3 feet x 6 feet 3 feet x 6 feet 3 inches 3 feet x 6 feet 8 inches | 91 x 183 91 x 190 91 x 203 |
| King Single | Single, more space on the bed | 3'5" x 6'8" 3'6" x 6'3" | 105 x 203 107 x 190 |
| Small Double | Single person who wants to enjoy a spacious space, Or two people who want to sleep together intimately. Suitable for smaller areas, Bedroom that cannot accommodate a standard double bed | 4 feet x 6 feet 4 feet x 6 feet 3 inches | 122 x 183 122 x 190 |
| Double | Two adults, plenty of room and comfort in the bed | 4 feet 6 inches x 6 feet 4'6" x 6'3" 4'6" x 6'3" | 137 x 183 137 x 190 138 x 190 |
| Queen | Two adults, plenty of room in the bed, Only suitable for larger bedrooms | 4'11" x 6'7" 4'12" x 6'3" 4'12" x 6'6" 4'12" x 6'8" 5'3" x 6'6" 5'6" x 6'6" | 150 x 200 152 x 190 152 x 198 152 x 203 160 x 198 168 x 198 |
| King | A partner who often sleeps with pets or children, There is plenty of space on the bed | 5'11" x 6'7" 6 feet x 6 feet 3 inches 6 feet x 6 feet 6 inches 6 feet x 6 feet 8 inches 6 feet x 6 feet 12 inches | 180 x 200 183 x 190 183 x 198 183 x 203 183 x 213 |
| Super King | Want to experience the largest mattress size? The ultimate luxury person or family | 6'4" x 6'8" 6'7" x 6'7" 6'7" x 7'3" | 193 x 203 200 x 200 200 x 220 |
Part 2: Tips for choosing mattress size
After understanding various mattress sizes, the next step is to choose a mattress size that suits you. You may wish to consider the following 5 points:
1. Mattress user
When choosing the size of a mattress, it is best for users to go to a Sealy store to conduct a comfort test in person, and try sleeping on the mattress for 10 to 15 minutes to see if the mattress will exceed the height by 20 to 30cm when lying down, so that the feet can have enough room to stretch. If you choose a double bed, it is recommended to leave at least 40cm between the two people so that they will not feel crowded.
2. Bedroom space
Bedrooms in Hong Kong are generally small in size. It is not easy to strike a balance between the sleeping space on the bed and the activity space in the bedroom. Therefore, when purchasing a mattress size, do not just pursue a large mattress. You should also pay attention to the activity space in the bedroom. Otherwise, the sense of space in the entire room will be greatly reduced and the quality of sleep will be affected. Bedrooms in Hong Kong are generally thin. To make good use of space, the ideal bedroom design is to place the mattress close to the wall so that any side of the mattress is about 75 to 90cm away from the wall of the room. From this, you can easily calculate the size of the mattress that suits your bedroom.
| Bedroom area | Ideal mattress size |
| Small (approximately 116 square feet) | Single, Single XL |
| Medium (approximately 176 square feet) | King Single, Double, Queen |
| Spacious (approximately 230 square feet) | King, Super King |
3. 留意床架結構影響量度方法
若本身的床架備有床框及床頭板，要留意床架有外框及內框之分，亦要注意床頭板的高度，否則可能會造成買回來的床褥放不下原有床架的情況。量度時請緊記量度床架內框。客人亦可記錄量度尺寸後，再向我們的睡眠顧問查詢。若擔心新買回來的床褥與床架尺寸不配合，不妨到Sealy專門店一站式選購床褥與床架。
4. Mattress Budget
Before deciding on the mattress size, you can set a budget first. Sealy offers different types of mattresses at affordable prices, and you can choose from different origins and specifications according to your needs. If you are looking for the sleeping feel of a 5-star hotel mattress or want to customize your mattress size, you can choose the Sealy hotel mattress series.
| budget plan | size | Sealy mattress recommendation | price |
| Economical choice (under HK,500) | 4 feet | Newton, the cost-effective choice for spine protection | HK,422 |
| Mid-range choice (between HK,500 and HK,500) | 4 feet | Best selling chiropractic model New Knightsbridge | HK,982 |
5. Potential future demand
It is best to take potential future needs into consideration when making your final purchase. For example, parents are buying a single bed for their children who are studying in primary five or six. Since they are in the period of development, if they buy a 3-foot x 6-foot Single mattress, their children will grow taller in the future, and may need to be replaced with a 3-foot
從床褥使用對象、睡房空間、床架尺寸、床褥預算、未來潛在需求五方面考慮過後，或許在市面上常見的7種床褥尺寸，亦未能找到符合你心中所想，而Sealy的訂造服務正好能照顧這個市場需求，按照你指定的尺寸訂造床褥，且更不會收取額外費用。
After completing this two-part journey of determining mattress size, I believe you have a perfect grasp of the concept of mattress size!
