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5 Little Monkeys Sleep System Review

Last updated on July 8, 2019

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To evaluate the 5 Little Monkeys Sleep System -- a mattress designed for children, we enlist the help of two junior testers.

Short on time? Click here to jump down to the review summary

Note: The 5 Little Monkeys Sleep System is a mattress, mattress protector and pillow designed for children, available in twin and full (double) sizes only, and sold only as a system (the mattress itself is not sold separately).

If you’d prefer to watch rather than read, check out our full 5 Little Monkeys Sleep System video review.

Table of Contents

Nobody does more in-depth mattress reviews than GoodBed — which means there's a lot of information here! Use the links in this table of contents to quickly jump to the sections of this review that interest you most.

Summary Overview of GoodBed's findings and conclusions about this product
Materials & Construction Mattress Type, Layers, Cover
Comfort & Feel Ratings Softness, Cushioning Depth, Memory Feel, Bounce
Back Support + Pressure Relief Ratings By sleeper weight and sleep position
Feature Ratings Edge Support, Temperature, Natural vs Chemicals
Price & Value Cost, Discounts, Durability, Overall Value
Other Factors to Consider Delivery, Returns, Warranty
Bottom Line Who is the best/worst match for this mattress?

 

Summary: Is 5 Little Monkeys a Good Mattress?

The 5 Little Monkeys Sleep System consists of three components: a mattress, a waterproof mattress protector, and a pillow. The 8" all-form mattress features some gel memory foam on top. The mattress cover, protector, and pillow are made with organic cotton, and all three are washable. The set also comes with a plush monkey toy (a hit with our junior testers). 

The founders of the company say they were troubled that there were few choices specifically made with children's needs in mind, so they decided to make one (read more on the company's founders).

We approached testing this mattress a bit differently since it is not intended for adults; our adult tester's two children both slept on the mattress for several weeks. For an adult, this mattress will feel very soft, buy for a much lighter child, it will feel firmer. From a child's point of view, we would class this mattress as a Medium on our scale.

While this is not a natural mattress, we did appreciate that the mattress's cover, protector and pillow are made with organic cotton, since these are the items closest to your child. The mattress's cover zips off and can be machine-washed, which is a plus not often available on mattresses, whether made for children or not. 

Our two kid testers offered their opinions after spending a month sleeping on the 5 Little Monkeys mattress. Twelve-year-old Leila said she found the mattress "squishy" and that comparatively, her old mattress "feels like hay." She thought she fell asleep more quickly on the 5 Little Monkeys mattress, and was also comfortable reading in bed before sleeping. Younger brother Kenan also commented that the mattress was soft and said he slept "amazing." 

From a value standpoint, the twin-sized 5 Little Monkeys Sleep System, at the time of our review, sells for $499, a good value compared to other foam mattresses sold online. The included mattress protector and pillow are worth about $100 on their own, so we do feel the Sleep System is a strong value.

We did have some questions about edge support; if you like to read with your child before bed, or if you comfort your child at night, your adult body will likely be right on the edge of the mattress. While our adult tester did not feel like he would roll off, edge support was not the best. 

Like competing companies selling mattresses online 5 Little Monkeys offers free delivery, and a 100-night trial period, during which you can return the mattress and receive a full refund--that's a return policy that's less common when it comes to inexpensive mattresses you might find in a mattress store, for example.

Read on for our detailed report and be sure to check out the video to see the 5 Little Monkeys mattress in action as we put it through our tests. You can always visit the company's website for more on the 5 Little Monkeys Sleep System.

 

Bottom Line: Who is the Best Match for a 5 Little Monkeys Sleep System?

BEST if you:

  • You want a washable cover
  • Natural materials closest to your child
  • Included mattress cover and pillow

NOT IDEAL if you:

  • Prefer an all-natural mattress
  • Need the best edge support
  • Want a bouncy mattress

Comfort & Feel

These are the "preference-based characteristics" of a mattress. No classification here is better or worse – they are strictly a matter of your personal preference.

Softness Level
(1=Least Soft, 9=Most Soft)
5 Medium
Cushioning Depth
(1=Shallowest, 9=Deepest)
6 Slightly deeper than average
Response Rate
(1=Slowest, 9=Fastest)
7 Quick recovery, little bounce

 

Other Features

These are the "priority-based characteristics" of a mattress. Ratings here indicate where this mattress has strengths or weaknesses – however the importance of these features will depend entirely on your personal priorities.

Stays 'Cool' 6 Average
Edge Support 6 Good but not the best
Green Features 6 Has some natural components
Overall Value 9 Excellent value

 

Key Facts

Mattress Type

Memory Foam over Foam

Price (Twin)

$499

Delivery

Free delivery

Return Policy

100-day trial, full refund and pickup

Warranty

15 years. Indentation coverage: 1.5"+

Country of Manufacture

United States

Thickness

8 inches

Weight (Twin)

NA

Materials & Construction  

What is in a 5 Little Monkeys Mattress?

Overall, we classify the 5 Little Monkeys mattress as a "Memory Foam over Foam" construction type. It is an 8″ thick mattress comprised of 3 stacked foam layers (listed below from top to bottom):

  • 1.5" gel memory foam, 4 lb. density
  • 1.5" transition memory foam, 3 lb. density
  • 5" polyurethane foam support layer

On top, you have a 1.5" layer of gel memory foam. Gel is a known conductor of heat and kids have a reputation of sleeping hot, so the gel is intended to help channel heat away from the child's body during the night. We found this top layer of foam to be quite soft and quick responding, without very much of that slow delayed responsiveness that we typically associate with memory foam. Under that is another layer of what the company calls memory foam. It is even quicker responding than the top foam. Lastly, forming the support layer is a block of 5" polyurethane foam. 

Cover

The of the 5 Little Monkeys mattress are covered in a removable and machine-washable organic-cotton cover. If you have kids, you know that a washable cover is a plus. Below, our testers demonstrates zipping off the cover. The cover feels very sturdy and well made.

 

Comfort & Feel

There are three aspects that make up our assessment of comfort and feel. We call these "preference-based characteristics" because no rating here is better or worse – rather, the attributes that are most desirable to you will be determined solely by your personal preferences. We apply the same classification standards to each mattress so you can more easily compare apples to apples.

Softness ( what’s this )

Keep in mind that what mattress companies call “firm” or “soft” is a purely a preference. All mattresses should be supportive and promote healthy spinal alignment. Whether a mattress is fluffy and squishy (what mattress companies call soft or plush), or less so (what companies call firm), is purely down to your personal needs and preferences.

We looked at the 5 Little Monkeys mattress from a child's point of view; a heavier adult would find this a much softer mattress than a lighter child. We would call this mattress a Medium overall - it's plenty soft but has firmness below.

Not sure what softness is best for you? Take our Mattress Match Quiz and find out.

Softness Level
(1=Least Soft, 9=Most Soft)
5 Medium

 

Cushioning Depth ( what’s this )

This refers to how deeply you sink into the mattress or feel cradled or hugged, versus a feeling of floating on top of the bed. This is definitely more of the latter. When we pressed into the mattress, our hand got quite deep into it, for what we would term as deeper than average cushioning. However the weight of your child will be a big factor here. Neither of our child testers felt that they were being swallowed by the mattress or had any trouble changing positions.

Cushioning Depth
(1=Shallowest, 9=Deepest)
6 Slightly deeper than average

 

Responsiveness ( what’s this )

Responsiveness refers to how quickly a mattress recovers its shape after being compressed. When you press your hand into the mattress, for instance, then remove it, does it take several seconds for the mattress to return to flat, or does it recover immediately?

While the 5 Little Monkeys mattress does have some memory foam, we found it to be a very quick-responding foam, with little of that slow responding memory foam feel. The mattress also has very little bounce (like most all-foam mattresses).

Response Rate
(1=Slowest, 9=Fastest)
7 Quick recovery, little bounce

 

Back Support & Pressure Relief

The two things that you should always be sure to get from your mattress are spinal alignment (commonly thought of as "back support") and pressure relief. Unfortunately, no mattress will deliver these two things equally well for all sleepers. In particular, spinal alignment and pressure relief capabilities will vary across sleepers with different weights, body shapes, and sleep positions. T

Children need proper spinal alignment and support as much as adults. A mattress that's too firm might result in a child not sinking in at all, which a too-soft mattress might allow the back to curve too much. In our observations with our child testers, support and spinal alignment did not appear to be issues, whether back, side, or stomach sleeping.

 

Other Characteristics

Beyond the preference-based characteristics of comfort and feel, and the body matching for spinal alignment and pressure relief, a mattress will have a number of other attributes that can make it a better or worse choice for you. We call these "priority-based characteristics" because they are areas in which a mattress can be better or worse, but that will have differing amounts of importance to each sleeper. So, determining how much importance to give to these features will be entirely a matter of your own personal priorities. As always, we apply the same ratings standards to each mattress so you can more easily compare apples to apples.

For the 5 Little Monkeys Sleep System, we looked at factors that would matter to children.

 

Temperature ( what’s this )

Children can have a tendency to sleep hot. 5 Little Monkeys solution for this is the inclusion of gel in the top layer of memory foam. Gel is a known conductor of heat, and it's used in many other mattress brands for the same reason.

Overall, we did see any reason to think a child would be any warmer on this mattress than any other.

Stays 'Cool' Rating 6/10 Average

 

Edge Support ( what’s this )

Edge support can be important for a children's mattress for a couple of reasons, and more for a parent than perhaps for a child. In the top photo, you'll see one of our child testers sitting on the side of the 5 Little Monkeys mattress. He's stable and doesn't sink down too much--helpful if your child likes to sit on the edge, or perhaps to tie their shoes.

But edge support also has a role for caregivers, too. If you and your child like to read a book together, for example, you'll find yourself squeezing in to fit on the side of the bed. Same if you need to comfort a child at night. Our adult tester felt fairly stable on the edge, but as you can see in the lower image, he's sinking quite a lot. Overall, edge support is good, but not the best among foam mattresses.

Edge Support Rating 6 /10 Good but not the best


Green Features ( what’s this )

For mattress shoppers concerned with the use of natural materials, sustainable manufacturing practices or the like, we offer our subjective evaluation of any efforts taken by the company to make the mattress more green, healthy, or safe. 

In the case of the 5 Little Monkeys mattress, the foams are not natural, but they are certified to the CertiPUR-US standard, which verifies that a material has low VOC off-gassing as well as a lack of chemicals and other substances regulated by the CPSC.

The Sleep System's mattress cover, mattress protector and pillow cover are all made of organic cotton, so the items that are closest to your child are more natural than the innards of the mattress itself.

Green Rating 6 /10 Has some natural components

 

Price & Value

How Much Does the 5 Little Monkeys Mattress Cost?

Prices shown are list prices. Remember that GoodBed keeps our site current with the best available discounts on all online mattresses, many of which are exclusive discounts for our readers. 

The 5 Little Monkeys Sleep System comes in two sizes: Twin and Full.

Size Dimensions Mattress Platform Foundation GoodBed Discount
Twin 39" x 75" x 8" $499 $169 $25 off
Full (Double) 54" x 75" x 8" $799 $179 $25 off

 

What Are You Getting?

The 5 Little Monkeys Sleep System includes three components: The mattress itself, a waterproof mattress protector, and a pillow. The mattress cover, protector and pillow cover are all made of organic cotton and are machine washable. The mattress cover zips off for cleaning. The mattress also comes with a 100-night trial, with full refund including pickup should you decide to return the mattress.

Also included in the System is a toy monkey, which our child testers were fond of.

How Long Will the 5 Little Monkeys Mattress Last?

When it comes to estimating the comfort lifespan of a mattress, we tend to use foam density as our best, albeit imperfect, predictor of how long a foam will retain its shape and resiliency. In the case of the 5 Little Monkeys mattress, the top foam layer has a 4 lb. density, and the next layer a 3.5 lb. density. While not the highest density memory foams we've seen, they are certainly higher than many, if not most, competitors at this price point.

Overall Value

The twin sized 5 Little Monkeys Sleep System is currently $499. In our view, the pillow and mattress protector add at least $100 of value to the package. The cover, protector and pillow cover are organic cotton, adding more value. Compared to mattresses you would find in stores, as well as compared to similar all-foam mattresses available online, we do think the 5 Little Monkeys Sleep System is an excellent value.

Value Rating 9 /10 Excellent value

 

Other Factors to Consider

Delivery

  • Free delivery to your door step

5 Little Monkeys includes free delivery with this sleep system, which has become fairly standard among most online mattress competitors these days.

 

Return Policy

  • 100-day trial period
  • Full refund within trial period, including free pickup

5 Little Monkeys offers buyers a 100-day trial period. Returns within the trial period are free, with pickup of the mattress included. Get the full return-policy details.

Read more here: 5 Little Monkeys return policy

 

Warranty

  • Warranty Length: 15 years
  • Indentation Coverage: 1.5” and above

One of the biggest, if not THE biggest complaints about any mattress from consumers regards body impressions—the inability of a mattress to spring back, eventually creating a low spot/sinkhole in the mattress. As such, mattress warranties all contain a term defining how big a sag or ‘body impression’ (measured when no one is on the mattress) is considered a defect, and thus covered under the warranty. The industry standard for foam mattresses is generally between ¾” and 1”. 5 Little Monkeys has chosen to cover indentations that meet or exceed 1.5" which is higher than most. Practically speaking, that means any softening or sagging would need to be at least that deep before the warranty would offer you protection.

As a mattress meant for children, we do not think that sagging is a large risk since children are lighter in weight. If you intend to use the mattress for an adult or heavier teenager, body impressions could be more of a concern in your decision-making.

Read more here: 5 Little Monkeys warranty

 

Bottom Line: Is the 5 Little Monkeys Sleep System Right for You?

The 5 Little Monkeys Sleep System is a unique mattress set designed for children. Here’s who we think the mattress is best for, based on our evaluations

BEST if you:

  • You want a washable cover
  • Natural materials closest to your child
  • Included mattress cover and pillow

NOT IDEAL if you:

  • Prefer an all-natural mattress
  • Need the best edge support
  • Want a bouncy mattress

Is the 5 Little Monkeys Sleep System right for your family? Take our Mattress Match Quiz to find mattresses that fit your needs, based on your preferences and price range. 

Looking for more on the 5 Little Monkeys mattress? Visit 5LittleMonkeysBed.com

 

Final Note

If you like the in-depth assessments and objective expertise that we provide in our reviews, please support our work by coming back to GoodBed.com whenever you're ready to buy – purchasing through most links on this site provides us with a small referral fee that supports our work at no cost to you.


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