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)

If you’re a dedicated side sleeper, Saatva and Helix should be two of the brands at the top of your shopping list. In this Saatva Classic Plush vs Helix Midnight Luxe comparison, we’ll look at these two mattresses designed primarily for side sleepers, and help you decide which is the best bed for you.

You’ll find both the Saatva and Helix in our best mattress round up. Both mattresses offer a plush finish, with plenty of cushioning around the pressure points of the shoulders and hips, ensuring side sleepers will sleep comfortably all night.

In today's Memorial Day mattress sales, there's a cool $400 off all sizes, thanks to our exclusive sale access. That means you can buy a queen size Saatva Classic for $1,695 at Saatva (was $2,095). Meanwhile, there's 30% off the Helix has 30% for Memorial Day, plus two free pillows. This massive discount means you can pick up a queen for Helix Midnight Luxe for $1,661 at Helix (was $2,373.80) - don't forget to enter the code MEMDAY30 at checkout. With little between them price-wise, which mattress for side sleepers should you buy? Here’s how to choose between the Saatva Classic Plush vs Helix Midnight Luxe in this today's Memorial Day sales… 

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:

Swipe to scroll horizontally
Row 0 - Cell 0 Saatva Classix PlushHelix Midnight Luxe
Type:Hybrid innerspringHybrid
Firmness (1 -10):3 (also available in 5-7 and 8)6
Height:11.5" or 14.5"13.5"
Trial:365 nights100 nights
Warranty:Lifetime15 years
Price (MSRP):From $1,395From $1,373.80

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

  • There’s $400 off all sizes of the Saatva Classic in today's Memorial Day sale
  • There's 30% off the Helix in today's Memorial Day sale, plus two free pillows
  • The Saatva comes with a longer sleep trial and warranty period

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)

The Saatva and Helix are both two of the best hybrid mattresses, but you’ll never need to pay MSRP for either model. Still, even with the biggest discounts, these are still higher-end purchases, although the comfort and support levels they give are worth the outlay. Expect to find 12-15% off the Saatva Classic Plush at all times, with slightly more generous discounts around major sales events. 

Right now, our exclusive sale access means the Saatva Classic has $400 off all sizes of the mattress, plus the MSRP of the bed has dropped as well. This means you can pick up a queen for $1,695 (last month it was priced at $1,795). We’re expecting prices to rise again after Memorial Day, so this is the best Saatva mattress sales offer you can expect to see for some time. 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 today's Memorial Day Helix has knocked 30% off its Luxe and Elite mattresses, as well as including two free pillows with every purchase. This means you can pick up a queen for $1661.66 by entering the code MEMDAY30 at checkout. Helix’s extras are a little lacking in comparison to Saatva – you only get a 100-night trial, 10-year 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 $1,395 | now $995 at Saatva

Saatva Classic Plush: was from $1,395 | now $995 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 and with the MSRP off the mattress also dropping, you can pick up a queen for $1,695. You’ll also get a year’s sleep trial, lifetime warranty and free white glove delivery.

Helix Midnight Luxe: was from $1,373.80 | now $961.63 at Helix

Helix Midnight Luxe: was from $1,373.80 | now $961.63 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 right now there’s an incredible 30% off the Luxe and Elite models, bring a queen Helix Midnight Luxe down to $1,661.66. You’ll also get two free pillows. Just enter MEMDAY30 when you get to the checkout. Extras include a 100-night free trial, 10-year warranty and free shipping. 

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 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 and we rate the Saatva Classic as one of the best mattresses for back pain

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. Despite this extra support, 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 suffer from back pain: The Saatva Classic does an excellent job of keeping the spine perfectly aligned and there’s extra support in the lumbar region.  

✅  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.