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Mainstays Mattress Review

Mainstays mattress with headboard

Mainstays is an affordable bedding brand owned directly by Walmart. You can think of Mainstays mattresses as Walmart’s answer to AmazonBasics: a no-frills, affordable option for sleepers who are on on a tight budget.

If you’ve spent any amount of time reading online mattress reviews you’ve likely noticed how expensive most brands are. Even though the bed-in-a-box industry claims that they’re reducing costs by sending the package directly to your front door, these mattresses still routinely cost more than $1000.

Those eye-popping prices make Mainstays mattresses seem much more appealing in comparison. When you can spend less than $200 on a queen-sized mattress it’s hard to imagine spending more than that. Are Mainstays mattresses worth it? Is it a good idea to save money on your mattress by buying one directly from Walmart?

Let’s start by determining whether Mainstays mattresses are a good option for you and then we’ll go into detail about the different features of this budget brand.

Should you buy a Mainstays mattress from Walmart?

If you’re considering purchasing a Mainstays mattress then it’s safe to assume that you’re on a tight budget. The main reason to buy a mattress from this Walmart store brand is because you want to save money.

Let’s get one thing out of the way: you’re definitely compromising on quality if you decide to buy a Mainstays mattress. Most bed-in-a-box brands sell a queen-sized mattress for approximately $1000, so the fact that Mainstays is able to sell a mattress for a small fraction of that price means that they had to cut a few corners when it comes to the quality of the materials and construction.

If you’re OK with that then you shouldn’t be too disappointed with Mainstays mattresses. Like their competitor AmazonBasics, Mainstays mattresses won’t last a long time. You’ll most likely have to throw it out and replace it after only two or three years, and you’ll notice that it’s deteriorating before then.

What you get is a fairly comfortable memory foam or innerspring coil mattress at an inexpensive price. While it’s not going to be as comfortable as a mattress from a competing brand like Amerisleep or Avocado, you’ll still get a decent night of sleep from Mainstays mattresses for the short amount of time you have it before it starts breaking down.

You should buy a Mainstays mattress if you:

  • Are on a strict budget and want to save money
  • Like the feel of memory foam
  • Are a side sleeper or combination sleeper
Mainstays mattress on white background
Mainstays is basically a slab of memory foam. Nothing wrong with that if that’s what you’re looking for.

Features of Mainstays mattresses

Firmness

We rate Mainstays as being a medium level of firmness. Medium memory foam mattresses are best for side sleepers and for combination sleepers (people who rotate between different sleeping positions throughout the night).

The memory foam did a decent job of conforming to my body shape, but there are much better options out there. If you’re willing to spend a little bit more, brands like Casper and Amerisleep make memory foam mattresses that are much more comfortable.

Even though Walmart claims that this mattress isolates motion, we found that it actually does not do a good job of isolating motion. When sleeping next to a partner you’ll definitely notice it when they toss and turn in the middle of the night. If motion isolation is a big deal for you then you should look elsewhere.

Mainstays also did a bad job of relieving pain. I suffer from back pain and noticed that the pain was still there when I woke up in the morning. On the plus side it didn’t make my pain worse. But the pain was still there. When there are so many brands out there making mattresses that can actually help alleviate your pain, it’s not worth buying a mattress like this.

Construction

The cover is made out of polyester. There’s nothing noteworthy about the cover. It has a cheap feel and doesn’t seem like something that will last very long.

Underneath the cover is a slab of memory foam that varies in height depending on which option you choose. Walmart claims that the foam is made without PBDEs, TDCPP or TCEP (“Tris”) flame retardants, ozone depleters, mercury, lead or heavy metals.

It’s important to note that Mainstays uses fiberglass for fireproofing. Fiberglass can cause serious health problems if you remove the cover (which you shouldn’t ever do). Some people have even reported that the fiberglass can poke through the cover after extensive use.

Mainstays mattresses will arrive at your door compressed and rolled up in a box. Once you remove your mattress from the packaging allow 48 hours for it to fully decompress.

Sizing

Mainstays is available in the following standard sizes:

  • Twin
  • Full
  • Queen
  • King

It’s available in 6″, 10″, and 12″ profiles.

Price

Prices vary depending on which height you choose. We’ll use the 10″ version as the baseline. If you buy the 12″ mattress then it’ll be more expensive than these prices. The 6″ version is much cheaper.

  • Twin – $145
  • Full – $189
  • Queen – $239
  • King – $289

Warranty and trial period

Walmart offers a 10-year limited warranty on Mainstays mattresses. The warranty is designed to protect you against defects in manufacturing and materials.

If you have a problem with your mattress, contact Walmart customer service. The company will help you return or replace your mattress if you have a valid warranty claim.

You’ll get a 90-day free trial when you buy a Mainstays mattress directly from Walmart. If you want to return it any time within the first 90 days, contact the company and they will pick it up and give you a refund.

Walmart also offers a price-match guarantee. If you can find a lower price on an identical product from an online retailer then Walmart will match that price.

Mainstays coil mattress
Mainstays also offers a coil mattress.

About Mainstays

Customer satisfaction

The 10″ version of the Mainstays memory foam mattress currently has a 4.0/5 star rating on Walmart.com. This review is based on 81 customer reviews. Consumers praised the brand for its light weight, softness, and comfort. They disliked it because it didn’t fully inflate in some cases, for being too hard, and for not conforming to their body.

Physical stores

Mainstays mattresses are available for sale in most Walmart stores. You can also order online for local pickup so you can get your mattress faster. You won’t necessarily be able to test out the mattress at most Walmart locations, but they should have it in stock.

How we rate mattresses

We rate mattresses using the following criteria:

  1. Comfort
  2. Structural integrity and durability
  3. Firmness and support

Learn more about our mattress rating process and methodology here.

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