Which Mattress Size Should I Get?

How do I choose the right mattress size? The right mattress size depends on your height, sleep setup (solo or with a partner), whether kids or pets share your bed, your bedroom dimensions, budget, preferred sleep position, and whether you use an adjustable base. The best size is the one that fits your body, your habits, and your space.

Choosing the right mattress size is one of the most important decisions you’ll make when shopping for a new bed. After all, a mattress that’s too small can leave you feeling cramped and uncomfortable, while one that’s too large might overwhelm your bedroom space. With so many factors to consider, you may be wondering, “What should be my mattress size?”

The answer depends on several factors including: 

• Your height
• Whether you sleep alone or with a partner
• If you have children or pets who join you in bed
• The dimensions of your bedroom
• Your budget
• Your sleep position
• Whether you use an adjustable base

Remember, selecting the right mattress size isn’t just about fitting in your room — it’s about supporting your ideal sleep environment. If you’re still unsure about which mattress size is right for you, our mattress experts at Texas Mattress Makers are here to help. We can guide you through all the options, taking into account your specific needs, preferences, and space constraints.

How to select the best mattress size

How do I choose the right size mattress? When selecting the perfect mattress size, there are several key factors to consider that go beyond just the square footage of your bedroom. The right mattress should accommodate your body, sleep habits, and lifestyle to ensure you get the most restful sleep possible. 

Here are the main variables to consider when determining which mattress size will work best for you.  For a full breakdown of every size and its dimensions, see our complete mattress sizes guide.

Your height

Your mattress should be at least 6 inches longer than your height to ensure proper comfort. Taller sleepers (over 6 feet) may find that a twin or full mattress size is too short, making a queen, king, or California king a better option to avoid hanging your feet off the edge of the bed.

Whether you sleep alone or with a partner

Adult single sleepers can often be comfortable on smaller mattresses like a twin XL or full, but couples generally need at least a queen size to sleep comfortably. If either of you is a restless sleeper or prefers extra personal space, upgrading to a king, split king or California king can make a significant difference in your sleep quality.

If you have children or pets who join you in bed

If your kids or furry friends regularly climb into bed with you, you’ll want to account for this extra space requirement. A king mattress offers the width of a twin XL for each person, making it ideal for families who co-sleep or have pets that like to cuddle up with them throughout the night.

The dimensions of your bedroom

Your mattress should fit comfortably in your room with enough space to walk around and open drawers or doors. As a rule of thumb, you should have at least 2 feet of space on all three sides of the bed (excluding the side against the wall). Measure your room carefully before making a purchase to ensure your new mattress won’t make your bedroom feel cramped. This is especially important if you’re purchasing a bed for a smaller room, a dorm room, or other confined areas.

Your budget

Mattress size directly affects price,  and not just for the mattress itself. Larger sizes like King and California King cost more for the mattress, foundation, bedding, and bed frame. California King bedding in particular can be harder to find and more expensive than standard sizes. Before committing to a size, consider the full cost of your sleep setup, not just the mattress price tag. The good news is that at Texas Mattress Makers, our factory-direct model means you get more mattress for your money at every size.

Your sleep position 

How you sleep affects how much surface area you actually need. Stomach sleepers who sprawl out or active sleepers who move around throughout the night benefit from more width, while side sleepers who curl up may feel just as comfortable on a smaller size. If you tend to wake up hanging off the edge, that’s a clear signal to size up. Our Mattress Experts™ can help you factor in your sleep position when narrowing down your size options.

Whether you use an adjustable base

If you currently use an adjustable base (or plan to), your mattress size choice matters more than you might think. Couples who want to adjust each side of the bed independently need a Split King configuration rather than a standard King. A split king consists of two twin XL mattresses side by side, each compatible with its own adjustable base, so you and your partner can customize your positions without affecting each other. If adjustability is part of your sleep setup, this is a factor worth deciding on before you commit to a size. Learn more about our adjustable bases.

Shop Quality Mattresses in Every Size at Factory-Direct Prices!

The right mattress size is more than just a measurement — it’s a key ingredient in your recipe for quality sleep. At Texas Mattress Makers, we understand that everyone’s sleep needs are different, and finding the perfect mattress means considering both your comfort requirements and the space you have available.

Whether you’re looking for a space-saving twin, a versatile queen, or a spacious king, our handcrafted mattresses are designed with quality components that ensure proper support and alignment, regardless of the mattress size you choose. And because we make our mattresses right here in Texas, we can offer factory-direct prices on every size without compromising on quality.

Visit any of our mattress stores in Houston and surrounding areas to experience the difference that a properly sized, expertly crafted mattress can make in your sleep quality.

More Helpful Articles by Texas Mattress Makers:

• Where to Find an Affordable Queen Mattress
• Best Mattresses for Bed-Bound Patients
• Mattress Testing: How Our Mattresses Surpassed Industry Standards
• 5 Unexpected Benefits of Sleep
• Mattress Shopping Tips for 2025