Saatva Classic Plush vs Helix Midnight Luxe: Which side sleeper mattress should you buy in today's Memorial Day sales?

In this Saatva Classic Vs Helix Midnight Luxe comparioson image, the Saatva is seen on the left hand side and the Helix is on the right
(Image credit: Saatva/Hleix)

Memorial Day brings some of the largest discounts you'll see all year on premium mattresses, meaning now could be the perfect time to grab a bargain. If you're a dedicated side sleeper, the Saatva Classic Plush and Helix Midnight Luxe should be two of the mattresses at the top of your list. But how to choose between them?

You’ll find both the Saatva and Helix in our guide to the best mattresses we've tried this year, with both offering a plush finish and plenty of cushioning around the pressure points of the shoulders, hips and knees. But there are obviously differences between the two —in this Saatva vs Helix comparison, we'll look under the covers to find out more.

The Memorial Day mattress sales are already live and our exclusive code gives you $400 off all sizes of the Saatva Classic Plush. That means you can buy a queen size Saatva Classic for $1,699 at Saatva (was $2,095). Meanwhile, our exclusive TOMS27 code gives you 27% off the Helix Midnight Luxe, taking a queen down to $1,732.54. You'll also get a free sheet set and mattress protector. But which mattress is right for you? Read on to find out...

Saatva Classic Plush vs Helix Midnight Luxe Mattress: Specs

You’ll find both the Saatva and Helix mattresses featured in our best mattress for side sleepers round-up, with these foam and coil beds being breathable, supportive and particularly suited to relieving pressure points. These are premium mattresses, offering a luxurious finish and plush features – let’s look under the covers at the essential specs:

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Row 0 - Cell 0

Saatva Classix Plush

Helix Midnight Luxe

Type:

Hybrid innerspring

Hybrid

Layers:

5

6

Firmness (1 -10):

3 (also available in 5-7 and 8)

6

Height:

11.5" or 14.5"

13.5"

Trial:

365 nights

100 nights

Warranty:

Lifetime

15 years

Price (MSRP):

From $1,395

From $1,373.80

Saatva Classic Plush vs Helix Midnight Luxe Mattress: Price & Trial

  • You'll get $400 off all sizes of the Saatva Classic with our exclusive link
  • Our exclusive TOMS27 code gives you 27% off the Helix Midnight Luxe
  • The Saatva comes with a 365-night trial to Helix's 100 nights

press photo of the Saatva Classic mattress, our best mattress pick, on a sunny patio area with the sea in the background

(Image credit: Saatva)

You shouldn't ever need to pay full MSRP for either the Saatva Classic or Helix Midnight Luxe, with both brands offering frequent discounts. However, even with those discounts, it is worth noting that these are premium mattresses, with a price tag to match.

Expect to find 12-15% off the Saatva Classic Plush throughout most of the year, with the best Saatva mattress sales being reserved for major sales events. Right now, our exclusive sale access for the Saatva Memorial Day mattress sales means the Saatva Classic has $400 off all sizes of the mattress.This means you can pick up a queen for $1,699 (MSRP $2,099). We’re expecting prices to rise again after Memorial Day, so now is the time to buy. The Saatva also comes with generous extras – you’ll get a 365-night trial, lifetime warranty and white glove delivery (although returns cost $99).

Helix also has evergreen sales on its mattresses, with Helix mattress sales running continuously. There’s usually 20-25% off mattresses, but our exclusive TOMS27 code gives you 27% off all sizes, taking a queen down to $1, 732.54 (MSRP $2,373.33). You'll also get a free sheet set and mattress protector, along with a 100-night trial, lifetime warranty and free shipping to your door. There is the option to pay for white glove service and returns are free.

Saatva Classic Plush: was from $1,399 now $999 at Saatva

Saatva Classic Plush: was from $1,399 now $999 at Saatva
With three firmness options to choose from, the Saatva Classic is a brilliant all-rounder. We’re focusing on the Saatva Classic Plush, which is specifically designed to suit side sleepers with its plush feel and contouring comfort. Saatva’s official Memorial Day sale is now live, with $400 off the Classic. This is the biggest discount we’ve seen, meaning you can pick up a queen for $1,699. You’ll also get a year’s sleep trial, lifetime warranty and free white glove delivery.

Helix Midnight Luxe: was from $1,436 now $1,048.28 at Helix

Helix Midnight Luxe: was from $1,436 now $1,048.28 at Helix
Specifically designed for side sleepers, the Helix Midnight Luxe is a plush mattress with exceptional pressure relief. Helix sales typically range from 20=25% off, but our exclusive TOMS27 code will give you 27% off all sizes, taking a queen down to $1, 732.54 (MSRP $2,373.33). You'll also get a free sheet set and mattress protector, along with a 100-night trial, lifetime warranty and free shipping to your door.

Saatva Classic Plush vs Helix Midnight Luxe Mattress: Materials & Design

  • The Saatva Classic comes in two heights – 11.5” and 14.5”
  • The Helix Midnight Luxe is 13.5” high
  • Both mattresses are hybrids and come with plush pillow tops for comfort

The Saatva Classic and Helix Midnight Luxe are two of the best hybrid mattresses on the market, but what's underneath the covers? The Saatva Classic is a hybrid innerspring mattress, made from a combination of foams and coils. Up top is a 3” thick Euro pillow top of the Saatva Classic, made with organic cotton and zoned quilting in the middle for extra lumbar support. The pillow top has been treated with an antimicrobial fabric treatment to help it stay fresh and is designed to cushion your body.

Underneath this, in the center third of the mattress, you’ll find a CertiPUR-US certified memory foam layer that’s specifically geared towards healthy spinal alignment. Next up, a layer of individually wrapped 14.5-gauge recycled steel coils that are designed to contour to your body – these are firmer in the center third to support the lumbar region.

These sit on top of a support base made up of 13-gauge tempered steel support coils. This is all wrapped up in a foam encasement around the perimeter to stabilize the whole mattress. The different heights are offered by different height springs.

Exploded diagram showing the different layers in the Saatva Classic mattress

(Image credit: Saatva)

The Helix comes with a breathable, hypoallergenic Tencel cover, with the option to upgrade to a GlacioTex cover for extra cooling. You’ll see this fabric in many of our best cooling mattresses, with it being well regarded for its ability to help keep sleepers cool.

Beneath the Tencel cover is a premium quilted pillow top that’s been sewn into the top of the mattress for a plush and soft feel. Underneath this is a layer of responsive polyfoam, followed by a layer of copper gel memory foam, both designed to contour to your body and provide support. Next up is a transition layer of memory foam, which sits on a layer of individually wrapped coils. These are firmer around the lumbar and edges of the mattress. Finally, there’s a dense foam base layer for support.

Saatva Classic Plush vs Helix Midnight Luxe Mattress: Comfort & Support

  • The Saatva Classic Plush is rated 3/10 for firmness
  • The Helix Midnight Luxe is rated 6/10
  • Both mattresses offer excellent lumbar support

The Saatva Classic is available in three firmness ratings, but we’re focusing on the Plush, which is specifically aimed at side sleepers. In our Saatva Classic mattress review, we tested the Luxury Firm version of the mattress (rated at 5-7/10), which we also felt could be suitable for average weight side sleepers. There’s also a Firm version (rated at 8/10), which heavier side sleepers may find more suitable. In short, there’s a Saatva for every body type and sleeping position.

This isn’t a bed that you sink into, even with the Plush version. Rather, you’ll lie on top of it, with the extra lumbar support and pillow top providing the cushioning comfort side sleepers need to stop pressure points building up. Because of its more traditional innerspring feel, we also think the Plush version is suitable for back sleepers.

The cushioned pillow top feels luxurious and provides enough body contouring to help avoid pressure points building up at the shoulders and hips. Overall, the Saatva Classic Plush offers excellent pressure relief and keeps the spine aligned in all sleeping positions.

Exploded diagram showing layers of Helix Midnight Luxe mattress

(Image credit: Helix)

The Helix Midnight Luxe is specifically designed for side sleepers, with the upper memory foam layer providing plenty of deep pressure relief around the hips and shoulders. But in our Helix Midnight Luxe mattress review, we also found that the medium firm mattress is supportive enough for back sleepers as well.

The plush pillow top delivers outstanding pressure relief for side sleepers, cushioning the shoulders and hips to provide plenty of contouring comfort. However, this isn’t a soft mattress, with the coils and copper-infused memory foam both working in tandem to keep the spine aligned, and to provide enhanced lumbar support.

We rate the Helix Midnight Luxe as one of the best mattresses for back pain you can buy if you're a side sleeper. Despite this extra support though, heavier bodies and stomach sleepers are unlikely to find this mattress supportive enough, but Helix make an entire range of mattresses specifically designed to fit different sleeping styles.

Saatva Classic Plush vs Helix Midnight Luxe Mattress: Temperature Regulation

  • The Saatva has a breathable cover double layer of coils for added air circulation
  • The Helix also has a breathable cover, coils and copper-infused foam for cooling
  • You can upgrade to a GlacioTex cooling cover with the Helix

During testing none of our testers ever felt hot or uncomfortable on the Saatva Classic. The temperature remained neutral throughout the night. This is mainly down to the small amount of foam used in the Saatva (foams can be notorious for trapping body heat). Well-spaced coils also help to promote airflow, whilst the cover is made from breathable cotton.

A close up image of a hand placed on the cover of the Helix Midnight Luxe mattress in order to gauge its temperature control

(Image credit: Future)

The Helix Midnight Luxe also has a breathable Tencel cover, along with coils to promote airflow and a layer of copper-infused foam (copper helps to draw heat away from the body). However, if you are a particularly hot sleeper, we’d recommend upgrading to the GlacioTex cover, which will wick away any heat or moisture while you sleep, helping you to stay cool overnight.

Saatva Classic Plush vs Helix Midnight Luxe Mattress: Which should you buy?

Buy the Saatva Classic Plush if...

You sleep hot: Although it’s not a cooling mattress per say, the Saatva does a fantastic job of keeping sleepers cool at night.

You want to customize your mattress: We’re focusing on the Plush version here but if that isn’t quite right for your body weight there are two other firmer options to choose from.

You prefer a traditional feel: The Saatva Classic feels like a traditional innerspring mattress, with a luxurious feel that’s like sleeping on a hotel mattress.

Buy the Helix Midnight Luxe if...

You suffer from back pain: Enhanced lumbar support and blissful pressure relief makes the Helix Midnight Luxe a great choice for back and joint pain sufferers.

You’re a combination sleeper: Although we’re focusing on side sleepers in this article, the Helix is an excellent choice if you’re a combination sleeper who alternates between sleeping on your side and back, as it’s supportive enough for both positions.

You share your bed with a restless partner: Motion isolation on the Helix is excellent, with even the lightest of sleepers unlikely to be disturbed by a partner overnight.

Jo Plumridge
Mattress tester and sleep writer

Jo Plumridge is an experienced mattress reviewer with several years' experience covering all things mattresses and sleep, and who tests memory foam, hybrid and organic mattresses. What Jo doesn't know about a boxed mattress isn't worth knowing, so naturally we tasked her with producing a series of features for Tom's Guide looking at all aspects of mattresses, from how to pick between latex and memory foam (it's a tricky one), to the seven mistakes people make when buying a mattress for the first time. When testing the DreamCloud Luxury Hybrid for Tom's Guide, Jo said: "I loved the back support and pressure relief it offered. Plus, it looks far more expensive than it is." When she isn’t writing about sleep, Jo also writes extensively on interior design, home products and photography.

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