How to Buy a Mattress Online: Your Guide to Types, Factors, Sizes & More

how buy mattress a online

Ten years ago, buying a mattress online would have sounded crazy. How would you test it? And how would it be delivered to your home? The practicality of the matter would have seemed impossible back then. But the past few years have brought a shakeup to the industry, with dozens upon dozens of online mattress companies popping up.

We know the market has become a bit overwhelming for consumers. There are almost too many online mattress companies to choose from, which means making a decision is nearly impossible. And when you finally do select a mattress, how will you know it’s the right one for your sleep preferences when the box shows up at your door?

Knowing how to buy a mattress online is the first speedbump to pass over. Since you can’t test it in a store, you need to understand exactly what you’ll be ordering. This online mattress buying guide will help you figure out:

  1. Do You Need a New Mattress?
  2. What Size Mattress Do You Need?
  3. What Mattress is Best for Your Sleep Style?
  4. What Sleep Factors Should You Consider?
  5. What Type of Mattress Should You Buy?
  6. What is Your Budget?
  7. Where Should You Buy From?

Do You Need a New Mattress?

Before spending your time researching and your money purchasing, think about if you really even need a new mattress. There are usually three main reasons why you’d need to replace your mattress:

You’re Moving

Whether you’re transferring across town or across the country, moving is a great time to consider your relationship with your mattress. Since you’ll be packing all of your things up anyway, buying a mattress online that can be delivered right to your door can be one less thing you need to worry about.

Your Mattress Has Become Uncomfortable

How have you been sleeping lately? If you’re waking up in pain or have trouble falling and staying asleep, it might be time to switch out your mattress. This can also be the case if you have a chronic injury, like back pain.

Your Mattress is Old

A good indication that it’s time for a new mattress is when you consider its age. Here’s a breakdown of how long mattresses typically last, based on their components:

  • Memory foam and hybrid mattresses: 10 years
  • Latex mattresses: 12 years
  • Innerspring mattresses: 8 years
  • Pillowtops: 8 years

Ultimately, if you’re not getting a good night’s sleep and are waking up in pain, it might be time to start looking for a new mattress regardless of its age.

What Size Mattress Do You Need?

Once you’ve determined that you do need a new mattress, the next question is which size to choose. It’s likely that you have a size you’ve become happy with, but if your living arrangements are changing or you are having comfort issues, take into consideration the following:

Twin Mattress – 39″ x 75″ x 10″

The smallest mattress size, Twins are usually a good choice for kids transitioning to bigger beds.

Twin XL Mattress – 39″ x 80″ x 10″

This is a popular size mattress for college dorms, offering an extra 5” of length compared to the Twin.

Full Mattress – 54″ x 75″ x 10″

Full-sized mattresses are best for single sleepers, usually young kids or teenagers. Since these mattresses are only 75” long, they might not offer enough leg room for some adults.

Queen Mattress – 60″ x 80″ x 10″

Queen mattresses are ideal for small master bedrooms. Couples who like to sleep close or single sleepers who like spreading out at night will enjoy this size.

King Mattress – 76″ x 80″ x 10″

This is the best choice for partner sleepers who want a lot of personal sleeping space or for those who share their bed with pets and kids.

California King Mattress – 72″ x 84″ x 10″

For those over 6’ tall, the Cal King is 4” longer than a regular king mattress!

If you’re moving to a new space, it always helps to break out the measuring tape and make sure you choose a mattress size that will fit comfortably in your room.

What Mattress is Best for Your Sleep Style?

The way you sleep at night is going to determine the firmness level, material and support you need in the mattress you buy online.

Side Sleepers

Side sleepers need a mattress that relieves pressure on their shoulders and hips. Usually, a slightly softer mattress that allows a bit of sink is best.

Back Sleepers

Very stiff or firm mattresses will push too hard against the spine for back sleepers, and a mattress that’s too soft won’t provide enough support. A foam mattress will be the one to go with.

Stomach Sleepers

Stomach sleepers need a mattress that won’t sink, so a firm mattress will be better than a soft one.

Combination Sleepers

Most people move during the night, so this is usually the most common sleep style. Combination sleepers need a mattress that can handle a lot of movement and reduce motion transfer so partners aren’t disturbed. A foam mattress is the ideal choice here as well.

What Sleep Factors Should You Consider?

When it comes to sleep factors like comfort and support, don’t think of them as opposites. A supportive mattress can have soft or firm comfort levels and a firmer mattress doesn’t necessarily mean it’s more supportive.


Mattress support is all about keeping your spine aligned. Supportive mattresses should be able to evenly distribute your weight throughout the night. A lack of support can lead to back pain, muscle fatigue and an overall crummy sleep experience.


Comfort is the initial feel of the mattress and is ultimately what helps you drift off to sleepy town. The comfort level will be entirely up to your personal preference of whether you like a soft or firm mattress.


Cooling technology and breathability will also impact your comfort. If you tend to sleep hot, a memory foam mattress is going to be unpleasant since they have a reputation of trapping heat. Temperature-neutral layers, like Serene® Foam, will be the material to go with if you’re choosing to buy a foam mattress online.

What Type of Mattress Should You Buy?

The technology and materials used to create mattresses today is lightyears beyond where it was even a few years ago. This is good news and bad news. It’s good because that means there’s a material for every type of sleeper, but it’s bad news because that means there’s more options to consider. Here’s a breakdown of the main types:

Spring Mattresses

Using rows of coil springs as the main support structure, spring mattresses can incorporate various types of coils that can affect the overall comfort. These mattresses also use types of foams or other fabrics to ease the supportiveness of the coils.

Latex Foam

Latex mattresses are available in natural, synthetic and blended varieties. These mattresses can offer a high bounce level but if you have allergies to rubber, latex won’t be for you.

Memory Foam

Memory foam is man-made, constructed of polyurethane (poly) and other added materials. These mattresses have impressive pressure relieving abilities, but have a reputation for trapping heat.

Poly Foam

This type of foam is also made of polyurethane. Air is able to pass through the cells of the foam to create a comfortable, contouring mattress.

Hybrid Mattresses

Some mattress manufacturers incorporate a combination of latex foam, memory foam, springs and other materials, classifying them as hybrids.

What are the major differences between foam and spring mattresses? Check out this article for a quick breakdown.

The Color of the Outer Cover

Whatever type of mattress you choose to buy online, pay attention to the color of the outer-cover. If you’re planning on using white bedsheets, you won’t want to see a brightly colored top layer through your sheets! Make sure you select a mattress with a white or neutral-colored top.

What is Your Budget?

The new mattress you buy online will be something you use every single day, so it’s not an area where you want to be frugal. With that said, it’s also not very reasonable to pay thousands of dollars for something that is modestly constructed and less comfortable than lower priced alternatives.

When buying a mattress online, you can spend anywhere from $500 to over $1,200. But if you’re buying a mattress at a retail store, you could pay a lot more than that, depending on the type you choose. This is because retail shops need to inflate prices to account for the costs of production, the showroom, salesperson commission, delivery and other factors. But when you buy a mattress online, you remove the middleman and significantly cut down costs.

Make sure you consider these factors when you’re determining the budget for your online mattress purchase:

  • Pricing will vary from brand to brand. One company might charge more than another that is promoting the same exact product.
  • Density and thickness of the foams will also affect cost. The higher the density and thicker the foam, the more the mattress will cost. Features of the foams will also affect the price.
  • Price isn’t a direct reflection of quality. This can be said for all things in life, but it’s especially true when it comes to the materials in your mattress.
  • The bigger size the mattress, the higher your budget should be. Avoid having Cal King preferences on a Twin XL budget!

Where Should You Buy From?

That’s the ultimate question! As we’ve mentioned, when it comes to buying a mattress online, there are almost too many places to choose from. To narrow down your options, use the following tips while researching how to buy a mattress online:

  • Check for Risk-Free Trials: Since you can’t test it before you buy it online, most online mattress companies offer some kind of risk-free trial. Still, you should never assume one is available.
  • Verify Shipping Locations: Make sure they can ship to your state; some can only deliver to the 48 contiguous U.S. states.
  • Look at Return Policies: Many companies say they offer free returns, but if they don’t have a connection in your area to pick up the mattress, disposal could ultimately fall on your shoulders.
  • Read Reviews: Check all reviews, including on the company’s website, Facebook, Google and any other review site where they are listed. Read the bad and the good for a holistic view. Also see how the company responds to reviews. This will give you a sense of how they approach their customer service.
    • Trust reviews from people who have slept on the mattress for at least 30 days. It takes about that long to get used to a new mattress. People reviewing mattresses in the first few days are reviewing too early and not letting their body adjust to the mattress first, so their reviews may be premature.
    • Don’t let the number of reviews fool you. Thousands of reviews just means that thousands of people have tested the mattress. It doesn’t mean that number of people loved the mattress!
  • Review the Company’s Educational Materials: The online mattress company might have a unique place or view in the market, which they should explain on their website. Check out their blog or any resource pages for this information.
  • Make Sure They Are an Honest Company: Are they promoting a soft mattress, but all the reviews say it’s way too firm? Also, be wary of companies stating that their mattress is “universally comfortable.” There’s no such thing since everyone sleeps differently!
  • Consider Charitable Donations: If charity is something you’re interested in, a lot of companies make donations for every sale to certain non-profits. You can likely buy a mattress online from a company who will donate to your favorite one.

We hope this guide on how to buy a mattress online helps you evaluate your options! If you have any questions about Blello’s materials or if it’s the right mattress for you, let us know!


*Serene® is a registered trademark of Carpenter Co.

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