Sleep Innovations Marley Hypoallergenic King Memory Foam Mattress

Last updated date: January 10, 2022

DWYM Score

9.7

Sleep Innovations Marley Hypoallergenic King Memory Foam Mattress

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We looked at the top King Memory Foam Mattresses and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best King Memory Foam Mattress you should buy.

Update as January 9, 2022:
Checkout The Best King Memory Foam Mattress for a detailed review of all the top king memory foam mattresses.

Overall Take

Whether you are a side, stomach or back sleeper, you'll find this king memory foam mattress provides just the right amount of support. Thanks to the built-in airflow channels, the mattress also does an excellent job of keeping you cool and comfortable throughout the night. Since the mattress is hypoallergenic, it's a great choice for all - even those with allergies and sensitive skin.


In our analysis of 31 expert reviews, the Sleep Innovations Marley Hypoallergenic King Memory Foam Mattress placed 1st when we looked at the top 11 products in the category. For the full ranking, see below.

From The Manufacturer

Keep your cool on our triple-layered memory foam Marley 10” Mattress. Designed with cooling gel memory foam, to keep you consistently comfortable for deep, undisturbed sleep.

Expert Reviews

Expert Summarized Score

7.8
2 expert reviews

User Summarized Score

8.2
1,322 user reviews

What experts liked

It looks simple yet classy. It also features a TriComfort Design so you can be rest assured that this mattress will keep you sleeping soundly through the night.
- SuperComfySleep.com
These are affordable mattresses that may not be ideal for those that are larger or need specific firmness options for their bodies.
- Slumber Search

What experts didn't like

Ideal only for back sleepers
- SuperComfySleep.com
without many of the perks of some of the newer brands.
- Slumber Search

An Overview On King Memory Foam Mattresses

If your old king mattress is no longer comfortable, giving you backaches, making you sweat and not letting you have a restful sleep any longer, it’s time to invest in a new one. Memory foam is a leading option in mattress choices because of the immense comfort it brings. Did you know that this material was actually made for NASA? The viscoelastic qualities of the memory foam made it perfect for helping pilots and astronauts stay safe in crashes.

There are a few different types of memory foam mattresses available, and each provides different benefits to its users. Traditional memory foam is a good choice for warm sleepers. It’s able to absorb heat, so it keeps you feeling cool all night. Plus, the type of support it provides helps to decrease stress on your joints.

Open-cell memory form is another option. If you don’t like the feeling of sinking into a mattress, then you’re in luck. This one doesn’t make you feel like you’re falling into quicksand. Plus, it also has strong heat regulation qualities so that it can help you have a restful sleep without feeling hot and sweaty all night. Gel memory foam is perfect for very hot sleepers. It works like a gel ice pack, with the gel fully infused into the mattress to help keep the body cool.

Regardless of what kind of king memory foam mattress you choose, you’ll have a good night’s sleep. Most memory foam mattresses are made with several different layers of materials. They work together to provide the right kind of support, comfort and cooling features you need. The top layer of memory foam contours to your body but it doesn’t provide the feeling of sinking in. This helps to reduce pressure on your joints and lets your body fully relax.

The King Memory Foam Mattress Buying Guide

  • An element you should keep in mind when looking for a new king memory foam mattress is what style of sleeper you are. Memory foam is ideal for back sleepers and side sleepers because it conforms to your body to take pressure off your spine and joints. If you’re a stomach sleeper, however, memory foam may not be the best choice. Some stomach sleepers find that the memory foam makes them feel like their face is surrounded by the mattress.
  • Consider what type of memory foam you want for your king mattress. All of them provide comfort and support, but gel memory foam is excellent if you find yourself sweaty at night. If you sleep very warm, then the best kind of mattress is a gel memory foam. It’s specifically designed to help keep the body cool all night, and will help regulate the temperature so you have a restful sleep.
  • Take a look at the mattress firmness. For memory foam, you’ll want to pay attention to the indentation load deflection or IDL. The higher the number is for IDL, the firmer the mattress will be. When shopping online, you can’t get a feel for the mattress in person, which is where IDL can come in handy. An IDL of around 12 is a very soft and cushy mattress, whereas an IDL of 50 is a firm and supportive mattress.
  • If you want a durable king memory foam mattress that lasts for a number of years, then pay attention to the memory foam density. Ideally, the memory foam mattress should have a 5-pound per square foot density for a high-quality product. Anything under 3.5 pounds per square foot will not last very long.