What Is the Size of a Single Mattress? Canadian Sizing Guide

Table of Contents

• What Is a Single Mattress?
• Canadian vs. US Mattress Sizing
• Single vs. Twin: Are They Really the Same?
• Complete Mattress Size Comparison Table
• The Single XL (Twin XL) Option
• Who Should Choose a Single Mattress?
• Room Size Requirements for a Single Bed
• How to Choose the Right Single Mattress
• Restonic Single Mattress Options
• Bedding and Accessories for a Single Mattress
• Common Mistakes When Buying a Single Mattress
• Frequently Asked Questions
• Sources

What Is a Single Mattress?

A single mattress is one of the most common mattress sizes sold in Canada. It provides a sleeping surface designed for one person, measuring 39 inches wide by 75 inches long (99 cm by 190 cm). If you have been wondering what is the size of single mattress options available at Canadian retailers, those are the standard dimensions you will find across almost every brand and store.

The single mattress has been a staple of Canadian bedrooms for decades. It is the go-to choice for children's rooms, guest bedrooms, dorm rooms, and smaller living spaces like bachelor apartments or condos. Its compact footprint makes it practical without sacrificing comfort for a solo sleeper.

The thickness of a single mattress varies by model and manufacturer, typically ranging from 8 inches for a basic innerspring to 14 inches for a premium hybrid or memory foam option. The thickness does not affect the sleeping surface dimensions, but it does matter for sheet fit and bed frame compatibility.

Canadian vs. US Mattress Sizing: What You Need to Know

One of the most common questions we hear at our Brantford showroom is whether Canadian mattress sizes are different from American ones. The short answer is: standard sizes are the same across North America. A single mattress measures 39 x 75 inches whether you buy it in Brantford, Ontario, or Buffalo, New York.

However, there are a few important differences Canadian shoppers should be aware of:

Metric vs. Imperial Labelling

Canadian retailers are required to provide metric measurements alongside imperial ones. You will often see single mattresses labelled as 99 cm x 190 cm in Canada, while US retailers almost exclusively use inches. This can cause confusion when shopping online from American retailers, as the measurements may look different but refer to the same size.

European and UK Single Sizes Are Different

If you are importing a bed frame or mattress from Europe, be cautious. A European single mattress measures 90 cm x 200 cm (about 35.5 x 78.5 inches), which is narrower and longer than a Canadian single. A UK single is 90 cm x 190 cm (35.5 x 75 inches), which is narrower but the same length. These differences mean European bed frames may not fit a Canadian single mattress properly.

Single vs. Twin: Are They Really the Same?

Yes. A single mattress and a twin mattress are the same size: 39 inches wide by 75 inches long. The two names exist for historical reasons, and both are still used in Canada today.

The term "twin" became popular in the mid-20th century when hotels and households began placing two single beds side by side in the same room, creating a "twin" arrangement. Over time, "twin" became the more common retail term in the United States, while "single" remained popular in Canada, the UK, and Australia.

When shopping, you may notice that some Canadian retailers use "twin" on their websites (especially those with a strong US presence), while local shops like ours tend to use "single" or list both terms. Regardless of the name on the tag, the mattress dimensions are identical.

Complete Mattress Size Comparison Table

Understanding what is size of single mattress becomes much easier when you can see it alongside every other standard Canadian mattress size. The table below gives you a clear comparison so you can decide whether a single is right for your needs or whether you should consider sizing up.

As you can see, a single mattress provides about 20.3 square feet of sleeping area. That is roughly 72% of the surface area of a double mattress and about 61% of a queen. For a solo sleeper, that is plenty of room to stretch out comfortably.

If you are deciding between a single and a double (full) mattress, the key difference is 15 inches of extra width. That extra space matters most for adults who tend to move around a lot during sleep or who share the bed with a pet.

The Single XL (Twin XL) Option

If length is your concern, the single XL (also called twin XL) adds 5 extra inches to the standard single. At 39 x 80 inches (99 cm x 203 cm), it matches the length of a queen or king mattress while keeping the narrow width of a single.

The single XL is the standard size used in most Canadian university residence halls, which is why it has become increasingly popular with younger buyers. It is also an excellent choice for anyone over 5'10" who finds the standard 75-inch length a bit snug.

One important note: a single XL mattress requires a single XL (twin XL) bed frame. A standard single frame is 75 inches long and will not accommodate the extra 5 inches. If you are shopping for bed frames, make sure to match the frame length to your mattress size.

Who Should Choose a Single Mattress?

A single mattress is a practical choice for many different situations. Here is a breakdown of who benefits most from this size:

Children (Ages 3 and Up)

Most children transition from a crib or toddler bed to a single mattress between ages 3 and 5. A single provides enough room for a growing child and can comfortably serve them well into their teenage years. Many parents choose a single because it leaves more floor space in the bedroom for play and study areas.

Teenagers

A single mattress works well for most teenagers, though taller teens (over 5'10") may want to consider a single XL for the extra legroom. If your teen will be heading to university soon, a single XL is a smart investment since most Canadian dorm rooms use this size.

Single Adults in Small Spaces

If you live in a studio apartment, bachelor suite, or compact condo, a single mattress can be the right fit. It provides a comfortable sleeping surface while leaving room for other furniture. Adults who sleep alone and do not need extra width will find a single mattress quite adequate.

Guest Rooms

A single mattress is a popular choice for guest bedrooms, especially when the room is also used as a home office. Some homeowners place two single beds in a larger guest room, giving visitors the option of separate sleeping arrangements.

Bunk Beds and Loft Beds

Single mattresses are the standard size for bunk beds and loft beds. If you are setting up a shared children's room or a cottage bunkroom, you will want standard single mattresses. Keep in mind that some bunk beds have weight and thickness limits, so check the manufacturer's specifications before buying.

Room Size Requirements for a Single Bed

Before you buy a single mattress, measure your room. While a single is one of the smallest standard mattress sizes, you still need enough space around the bed for comfortable movement, furniture, and safe access.

A helpful rule of thumb: leave at least 24 inches (60 cm) of clearance on the side of the bed you use to get in and out. If the bed is against a wall on one side, make sure the open side has at least 30 inches of clearance for comfortable access.

Measuring Your Room Properly

When measuring your room for a single mattress, remember to account for:

• Door swing: Make sure the bedroom door can open fully without hitting the bed frame.
• Closet access: Leave enough clearance to open closet doors or drawers.
• Headboard and footboard: These add 2 to 6 inches to the overall length and width of the bed setup.
• Baseboards and trim: Account for 1 to 2 inches where the bed frame meets the wall.
• Heating vents: Do not block floor vents with the bed frame. This is especially important in older Brantford homes with forced-air heating systems.

How to Choose the Right Single Mattress

Once you have confirmed that a single mattress is the right size for your space and sleeper, the next step is choosing the right type. Here are the main factors to consider:

Mattress Type

Innerspring: Traditional coil-based mattresses offer firm support and good airflow. They tend to be the most affordable option and are a solid choice for children and teens.

Memory Foam: Foam mattresses contour to the body and are excellent at reducing pressure points. They tend to sleep warmer than innerspring models, so consider this if the bedroom runs hot.

Hybrid: These combine a coil support system with foam comfort layers, offering the best of both worlds. Hybrids are typically in the mid-to-upper price range but provide excellent support and comfort.

Latex: Natural or synthetic latex mattresses are durable, responsive, and naturally resistant to dust mites and mould. They are a great option for allergy sufferers.

Firmness Level

Firmness preference is subjective, but some general guidelines apply:

• Children: Medium to medium-firm supports growing spines without being too hard.
• Teens: Medium-firm is usually the most comfortable option.
• Adults (back sleepers): Medium-firm provides good spinal alignment.
• Adults (side sleepers): Medium to medium-soft allows the shoulders and hips to sink in slightly for pressure relief.
• Adults (stomach sleepers): Firm prevents the hips from sinking too deep, which can cause lower back strain.

Support for Growing Bodies

If you are buying a single mattress for a child or teenager, prioritize proper spinal support. The Canadian Chiropractic Association recommends a mattress that keeps the spine in a neutral position, meaning the natural curves of the spine are maintained whether the sleeper is on their back or side (Canadian Chiropractic Association, 2023).

Budget Considerations

Single mattresses are generally the most affordable size across all categories. In Canada, you can expect to pay:

• Budget: $200 to $500 for a basic innerspring or entry-level foam.
• Mid-range: $500 to $1,000 for a quality hybrid or memory foam with enhanced features.
• Premium: $1,000 to $1,500+ for top-tier models with advanced materials and longer warranties.

If you are looking to add comfort to an existing single mattress without replacing it entirely, a mattress topper can be an excellent and affordable option.

Restonic Single Mattress Options

At Mattress Miracle, we carry a curated selection of Restonic mattresses in single sizes. Restonic is a Canadian-friendly brand that manufactures mattresses in North America and has been in business since 1938. Their single mattress lineup includes options across every price point and sleep preference.

Key Restonic Features for Single Mattresses

• Marvelous Middle Technology: Extra coils and support in the centre third of the mattress, where most of your body weight rests. This is especially beneficial for back sleepers.
• Aluminum Lumbar Support Band: Found in select models, this feature provides targeted lower back support without making the mattress feel overly firm.
• CertiPUR-US Certified Foams: All Restonic foam layers are tested for low emissions and made without harmful chemicals, which is especially important for children's mattresses.
• Edge Support: Reinforced edges mean you get the full 39 inches of sleeping surface, even when sitting on the side of the bed.

Bedding and Accessories for a Single Mattress

Getting the right accessories is just as important as choosing the mattress itself. Here is what you need to know about outfitting a single bed:

Sheets and Fitted Sheets

Standard twin or single sheets fit a 39 x 75 inch mattress. When buying fitted sheets, pay attention to the pocket depth. If your single mattress is 12 inches thick or more, look for "deep pocket" fitted sheets that accommodate thicker mattresses.

Mattress Protectors

A waterproof mattress protector is strongly recommended for single mattresses, especially for children's beds. It guards against spills, accidents, and dust mites, and can significantly extend the life of your mattress. Most protectors are machine washable and do not affect the feel of the mattress.

Mattress Toppers

If your single mattress is a bit too firm or you want to add a layer of softness, a mattress topper is a cost-effective solution. Memory foam toppers in the 2 to 3 inch range are popular for single beds and typically cost between $50 and $150 in Canada.

Bed Frames

A single mattress fits standard single or twin bed frames. Options include:

• Platform frames: Low-profile, no box spring needed. Great for modern rooms.
• Traditional frames with box spring: Raises the bed height and can extend mattress life.
• Storage frames: Include drawers underneath, ideal for small rooms.
• Bunk bed frames: Accommodate two single mattresses stacked vertically.
• Adjustable frames: Available in single XL size for sleepers who want head and foot elevation.

For those who need a portable option, a foldable single mattress can be a practical choice for guest sleeping arrangements or camping.

Common Mistakes When Buying a Single Mattress

After nearly 40 years of helping Brantford families find the right mattress, our team has seen every mistake in the book. Here are the most common ones to avoid:

1. Assuming All "Single" Mattresses Are the Same Size

As we covered earlier, a Canadian/US single is different from a UK or European single. If you are ordering a mattress or bed frame from an international retailer, always verify the exact dimensions in both inches and centimetres.

2. Forgetting About Mattress Thickness

A 14-inch-thick single mattress on a 9-inch box spring and standard frame can put the top of the bed at over 30 inches from the floor. For young children, that height can be a safety concern. Measure the total bed height and ensure the sleeper can get in and out safely.

3. Buying Based on Price Alone

The cheapest single mattress might save you money upfront, but it will likely need replacing sooner and may not provide adequate support. A mid-range single from a reputable manufacturer like Restonic can last 8 to 10 years with proper care, making it a better value over time.

4. Not Testing Before Buying

Online mattress shopping has become popular, but nothing replaces lying on a mattress in person. If the mattress is for a child, bring them along to the store so they can test it themselves. Everyone's comfort preferences are different.

5. Ignoring the Bed Frame

A single mattress needs a proper foundation. Placing a mattress directly on the floor can promote mould growth from trapped moisture, especially in basements or during Ontario's humid summers. A bed frame with slats or a solid platform provides airflow and keeps the mattress clean.

6. Mixing Up Single and Single XL

Buying a single mattress for a single XL frame (or vice versa) leaves a 5-inch gap or overhang. Always confirm the exact size of both your mattress and frame before purchasing. This is especially common when furnishing university dorm rooms, where the frame is typically single XL but parents buy standard single bedding.

Frequently Asked Questions