Tomorrow Sleep vs. Helix

In today’s review, we will be comparing two hybrid mattresses coming from two popular online mattress retailers Tomorrow Sleep and Helix Sleep.

Both Tomorrow Sleep and Helix Sleep offer multiple options for mattresses online, and while Tomorrow Sleep offers just two firmness options – Medium Soft and Medium Firm, Helix Sleep personalizes mattresses based on sleeper’s answers from a questionnaire.

Tomorrow Sleep

Construction and Materials

The Tomorrow Sleep mattress is a 10″ hybrid pocketed coil and foam mattress made up of 4 layers. It comes in 2 firmness options Medium Soft and Medium Firm, and the one we tested is Medium Soft.

  • 1″ Comfort Layer – This layer is 1″ of 4.8lb Visco Elastic memory foam designed to distribute your body weight and provide pressure relief. It is coated with phase-change temperature regulating material that pulls the heat away or keeps it close to your body.
  • 2″ Support / Cooling Layer – This layer is 2″ of 2.5lb gel infused memory foam that provides additional support to your body and reduces heat retention.
  • 6″ Support Layer – This layer is made up of 6″ of pocketed innerspring coils and a 3″ thick ventilated side rail system around the coils that promotes airflow through the sides of the mattress for additional cooling.
  • 1″ Foundation Layer – This layer is 1″ of high-density base foam that serves as the foundation for the coil system.

    Tomorrow Sleep mattress layers

    Tomorrow Sleep mattress layers

The cover is made from the phase-change regulating material with breathable open weave, and a smooth and soft finish that adds to the comfort and airflow.

Firmness and Support

Tomorrow Sleep comes in two firmness options, and the Medium Soft model that we tested scores 5-6 out of 10, with 10 being the firmest. Its top comfort layer provides a soft luxurious feel, and the underlying coils and foam provide a good support underneath which makes this mattress ideal for heavier sleepers.

The Tomorrow Sleep mattress offers a good support in all sleeping positions. It provides you with enough give in the top comfort layer to support your hips and shoulders, and with enough firmness when you switch to your back or stomach.

Comfort

The Tomorrow Sleep offers a lot of comfort as well. Coils combined with the gel memory foam top layer offer a good push-back and bounce, and provide your body with a nice contour and hug. This mattress is supportive and allows you to sleep soundly in all sleeping positions, while the soft cover keeps you cool and adds to the comfort.

Tomorrow Sleep mattress, king size

Tomorrow Sleep mattress, king size

Sleeping Hot

The Tomorrow Sleep does a good job in reducing heat due to the gel foam layer in the top comfort layer combined with the phase-change material in the covers. The nature of its innerspring coils allows a good airflow, and perforated edge panels around the coils contribute to this.

Sinkage and Motion Transfer

With the Tomorrow Sleep, sinkage is reduced to the minimum although it is only 10″ in height. The support coils regulate sinking, while the edge support layer incorporated within this mattress provides a good edge support and prevents you from rolling off of the bed. As it is a hybrid coil mattress, it has a certain degree of motion transfer, but nothing too extreme like it is the case with some competing beds.

tomorrow sleep mattress review

Tomorrow Sleep mattress profile

Smell / Off-Gassing

The Tomorrow Sleep gets high marks for not having any noticeable smell upon opening the box. Hybrid coil/foam construction of this mattress minimizes the degree of off-gassing that all foam mattresses usually have.

Customer service:

  • 365 night Trial period
  • 10-year Warranty
  • Free Shipping
  • American made at the Serta manufacturing facility.

Price

The Tomorrow Sleep is very reasonably priced, and you can get a Queen size for $865 after clicking here and using our $125 off code: MFT125. This is an excellent price given the quality of materials used in this mattress.

Click here to read the full Tomorrow Sleep mattress review.

 

Helix

Construction and Materials

Helix is a 10″ hybrid model made up of latex, micro-coils, and foam, and it consists of the following layers which are custom configured via altering their densities and weights to achieve the right degree of customization for your sleep preferences.

• 2″ Top Comfort Layer – This layer is 2″ of synthetic Dunlop latex designed to provide bounce, cooling, and responsiveness, and it can vary in firmness from ILD 15-32 (ILD being Indention Load Deflection, a measure of firmness) based on the questionnaire answers.
• 2″ Pressure Relief Layer – This layer is 1.5″ of micro coils that provide pressure, relief, bounce, and comfort, and create a similar feel to innerspring mattresses to a small degree.
• 2″ Support Layer – This layer is 2″ of polyfoam that provides transitional support between the comfort and lower support layers, as well as deep compression support. It also varies from ILD 20-26 based on the initial sleeper questionnaire.
• 4.5″ Foundation Layer – This layer is 4.5″ of high-density support foam that provides the overall foundation and support. It also ranges in ILD 26-33 based on the questionnaire.

Helix mattress internal layers

The cover of the Helix mattress is made up of 100% polyester, with a soft white top and lower blue bottom. The cover is thin and designed to assist in airflow and improve cooling.

Firmness and Support

With the Helix mattress, there is no pre-set level of firmness that can be evaluated based on pre-set factory construction of the mattress.
Instead, Helix customizes firmness and support for each sleeper according to their questionnaire answers and designs a mattress with different values for each side. Once the mattress is designed, they manufacture it and send it to your doorstep.

In our case, Andrew’s side required more support for his heavier weight (230lbs) and a softer feel which resulted in a mattress that felt around a 5 out of 10 on the firmness scale, with 10 being the firmest.

Mattresses that are around 10″ thick usually tend to not be thick and supportive enough to handle my partner’s weight, but the Helix does a great job here due to the varying ILD of each layer in his side of the mattress.

As for myself, I generally prefer a firmer mattress, and my side ended up being firmer without additional support for weight and felt more of a 7 out of 10, with 10 being the firmest.

Helix mattress build specs

Comfort

The combination of latex, micro coils, and foam with the soft breathable cover in this mattress all work well together to provide a necessary level of comfort on each side, while the hybrid design of latex and micro coils provides a good degree of bounce and responsiveness.

As the Helix is essentially a latex and coil hybrid in the top layers, it provides more of a “sleeping on top of” feel vs. a “sleeping down in” feel that memory foam mattresses offer.

Helix mattress, corner view

Sleeping Hot

The Helix mattress does an excellent job at minimizing heat buildup during the night due to the combination of latex and micro coils in its construction. The split design of the bed prevents the transfer of heat and helps in temperature regulation.

Sinkage and Motion Transfer

The Helix mattress varies in terms of the amount of sinkage and motion transfer, depending on each side and weight.
Andrew’s side of the mattress customized to suit his weigh provides more support and less sinkage, while my side does the same for me, and I also don’t feel any significant sinkage.

Helix mattress profile

Edge support in this mattress is solid, but this again depends on the side of the mattress and gives varying results.

Motion transfer is good with the Helix as the blended mattress uses different material construction on each side depending on the individual preferences of the sleepers. Such construction of the mattress isolates the movement and prevents the shaking of the mattress when changing positions or getting in and out of bed during the night.

Smell / Off-Gassing

The Helix mattress that we reviewed gets high marks in this category for not having a noticeable smell upon opening the box. The hybrid latex and micro coil design (with roughly half the bed being constructed of foam) had some off-gassing but it largely dissipated over the first few nights.

Customer Service

Helix Sleep provides about the standard amount of customer service you can expect in a “Bed In A Box” online mattress retailer that includes:

• 100 Night Sleep Trial
• 10 Year Warranty
• Made in America
• Free Shipping
• Money back guarantee

Price

The Helix mattress is priced at $900 for a Queen, which is a good price for customization and the quality materials and construction used in this mattress.

Adding the “Split Mattress” configuration adds $100 to the price.

You can Save $50 on a Helix by following this link and with code: MFT50

Click here to read the full Helix mattress review.

 

Tomorrow Sleep vs. Helix Mattress Comparison

Below is our comprehensive side-by-side comparison of the Tomorrow Sleep vs. Helix mattress.

 Tomorrow SleepHelix
Layers1″ of 4.8lb Visco Elastic memory foam infused with phase-change temperature regulating material, 2″ of 2.5lb gel infused memory foam, 6″ of pocketed innerspring coils, 1″ of high density base foam2″ of synthetic Dunlop latex, 1.5″ of micro coils, 2″ of polyfoam, 4.5″ of high density support foam
Height10″10"
CoverStretchy mix of polyester and nylonThin cover made up of 100% polyester, with a soft white top and lower blue bottom
Firmness5-6 out of 10Customized; 5-7 out of 10
SupportGoodVery Good
Motion TransferHigher than in most memory foam mattressesVery Minimal
Price-Queen$990$900
Price-King$1200$995
Warranty10 years10 years
Trial Period100 days100 days
ShippingFree ShippingFree Shipping
Refunds & ReturnsNoYes

Which Mattress Is Right for You?

Choose Tomorrow Sleep mattress if you like:

  • Memory foam feel – Memory foam top layer of this mattress provides a good contour to your body and gives you a feeling of hug typical for classic memory foam.
  • Breathable mattress – The innerspring coil layer and aerated side support layer allow excellent airflow through the mattress while the gel foam layer in the top comfort layer and the phase-change material in the covers reduce heat retention.
  • Mattress with bounce – The support layer made of a pocketed coil system provides a good degree of bounce and prevents sinking too far through memory foam layers.
  • Sharing your bed – The Tomorrow Sleep mattress performed well on the motion transfer test, and it is a good choice if you plan on sharing your bed with a partner as your sleep will not be disturbed by shaking of the mattress when changing positions with your partner or getting in and out of bed during the night.

Choose Helix mattress if you like:

  •  A custom mattress – The Helix is made from foam / micro coil layers that can provide a wide range of feels and different levels of firmness. By adjusting the position of a certain foam, along with customization to density and ILD value, Helix is able to mix and match different types of mattresses within one design.
  • A split mattress – With the Helix, you can have two split mattresses sewn into one mattress. This is especially good for couples with different needs and body characteristics.
  • Sharing your bed – The Helix as the blended mattress uses different material construction on each side depending on the individual preferences of the sleepers. Such construction of the mattress isolates the movement and prevents the shaking of the mattress when changing positions with your partner or getting in and out of bed during the night.