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Simba vs OTTY Mattress Review


Written by Kyle

Last Updated: 1st January, 2022

In this Simba vs OTTY mattress review, we compare two of the best hybrid mattresses in the UK. Hybrid mattresses utilise the bounce and support from springs as well as the comfort from the foam. But which hybrid is better for you? Scroll down for our full Simba vs OTTY comparison.

Please note this comparison is based on the Simba Hybrid mattress and the OTTY Hybrid mattress, these are their top models and most popular. If you would like to see other products from these sleep giants you can find the Simba and OTTY products as shown.


We would recommend if you have some extra time on your hands to head on over to our full in-depth mattress reviews:

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Simba vs OTTY Construction

This part of the Simba vs OTTY comparison review looks at the actual physical materials used. Both are hybrid mattress which means they use traditional springs as well as advanced foam for comfort.

Cover Comparison

Simba Cover

The new re-engineered Simba cover is now a 700g hand-knitted cover giving it that extra stretch. It is made from 100% polyester which adds to its flexibility. Simba's mattress cover does include handles for easy manoeuvring if need be. Additionally, the cover is also hypoallergenic which is great for those prone to get the sniffles. Finally, the diamond pattern on the top of the mattresses doesn't only look good but also makes the cover more breathable.

OTTY Cover

Similarly to the Simba, the OTTY cover is made from 97% polyester and 3% spandex. However, the cover can be unzipped both halves can be machine washed separately. OTTY included tiny pores in the top cover to dissipate heat evenly and ensure optimal sleeping climate.

Verdict - Both covers are very similar in terms of breathability, both covers are made to allow sufficient airflow, so you won't wake up from overheating. In terms of practicality, the Simba mattress cover includes handles for easy turning to increase mattress longevity whereas the OTTY mattress cover is machine washable which is great in today's busy world. If you do decide to purchase the Simba mattress we would recommend getting a mattress protector.

Materials & Layer Comparison

Simba Layers

Inside the Simba Mattress you will find 4 unique layers:

  • Simbatex® layer - This layer has is made from an open-cell polyfoam which allows for more breathability.
  • Conical pocket springs - These are mini springs in a conical shape to add some bounce to the mattress. up to 2,500 springs in a king size mattress.
  • Memory foam layer - Used as a transition layer and to add conforming properties to the mattress.
  • Polyfoam base foam - Adds support and includes zoning areas to allow for more sinkage for extruding areas like the hip and shoulder area to ensure optimal spinal alignment.

OTTY Layers

The OTTY mattress is made up of 4 layers plus a side layer:

  • Cool blue gel memory foam - Memory foam is known to be very soft and is great for pressure relief but is also known to hold heat. Otty has infused a gel of beads to combat the heat retention property yet still keep the comforting nature of memory foam.
  • Polyfoam - This layer is used as an intermediary layer to ensure a smooth transition from the top layer to the more sturdy springs below.
  • Encapsulated pocket springs - This is what makes an OTTY an OTTY. Here they used full-sized springs (14cm). This layer adds support and bounce to the mattress. There are up to 2,000 full-sized springs in a king size mattress.
  • Side polyfoam - Most mattresses with full-sized springs usually have a roll off effect but by boxing the springs in by polyfoam this is mitigated and adds extra edge support to the mattress.
  • Base polyfoam - This base polyfoam layer just acts as a support for the springs to sit on.

Verdict - We will start off this Simba vs OTTY layer comparison by saying they are both hypoallergenic, this means it is a very low hazard to those prone to allergies. Regarding the layers, Simba has used a more diversified portfolio of layers that work very well in harmony. However, the OTTY mattress does provide more support and more edge support.

Comparing Firmness & Feel

simba vs otty firmness comparison
(Image credit: The Mattress Guide)

Simba Firmness

The combination of foam layers and mini pocket springs has landed the Simba mattress at around 6.5/10 on the firmness scale. This is a typical placement for all these online mattresses sold in a box as they appeal to the majority of sleepers in the UK.

OTTY Firmness

OTTY have opted to engineer a slightly firmer mattress. The large supportive springs have shifted the mattress up the firmness scale, we rate it at about 7/10.

Verdict - Both Simba and OTTY offer great support, however, the OTTY mattress will be better received by those looking for more edge and overall support.

Simba vs OTTY Comparison

For this Simba vs OTTY mattress comparison review, we have included a summarised table below for you to browse through and see the major differences, side-by-side.

Layers44 + side layer
Cover100% polyester with handles97% polyester & 3% spandex, machine washable
Top Layer Simbatex® Open-Cell (4cm)Cool Blue Gel Memory Foam (3cm)
Layer 2Conical Pocket Spring Layer (2cm)Polyfoam Layer (3cm) 
Layer 3Memory Foam Layer (3,5cm)  Encapsulated Pocket Springs (14cm)   
Layer 4Polyfoam (15,5cm) Base Polyfoam Layer (4cm) 
Side LayerNAPolyfoamLayer (17cm)
Max Weight (2 people)18 stone or 114kg per person22 stone or 138kg per person
Made InUKChina
DeliveryFree, 1-3 business daysFree, 1-3 business days
Price £449-£849£349-£699
DiscountsLatest DiscountLatest Discount
Our ReviewSimba RatingOTTY Rating

*Although we update The Mattress Guide regularly, data and information can be changed by the manufacturers/ brands. Please confirm with the mattress company before purchasing.

Should I Buy a Simba or OTTY

Both online mattress giants offer a great hybrid mattress, however, they do have their slight differences.

We Would Recommend Buying a Simba Mattress if you are Looking For:

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simba comparison otty
(Image credit: Simba)
  • A mattress made from a variety of layers each offering unique benefits.
  • A well-rounded mattress made from high-quality materials.
  • A cooling mattress.

We Would Recommend Buying an OTTY Mattress if you are Looking For:

Up to 50% OFF
otty discount code voucher uk
OTTY Discount Voucher Code
Save Up to 50% OFF | T&Cs apply.
Save Up to 50% OFF | T&Cs apply. Show Less
otty comparison simba
(Image credit: OTTY)
  • A supportive mattress
  • A durable mattress that can hold a bit more weight.
  • A mattress that won't break the bank

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