Helix Midnight Luxe mattress that's 'like sleeping on a marshmallow' gets a 25% price drop — save up to $749

On your side is the most common sleep position in the world, and it comes with some challenges: namely, hip and shoulder pain if you sleep on a bed that lacks pressure relief. One of our favorites for side sleeping is the Helix Midnight Luxe, down to $1,874 (was $2,498) for a queen at Helix. This luxury mattress offers a good balance of cushioning and support to create a feel our lead tester described as 'weightless.'

The Midnight Luxe is a top-rated option in our guide to the best mattresses of 2026, delivering good lower back support and that all-important pressure relief. It isn't as perfect as our highest-scoring bed overall, the Saatva Classic (now $400 off at Saatva), but it's a fantastic choice for side sleeping couples.

You can save 25% on the Midnight Luxe in this year's 4th of July mattress sales, with prices from $1,119. The price drop isn't as good as the one we saw on Memorial Day sale, and prices at Helix have been creeping upwards lately (the Midnight Luxe is around $100 more expensive now), so this might be your last chance to get a decent deal on this mattress. Let's take a closer look...

It cushions the hips and shoulders

When you sleep on your side, your shoulders and hips bear the brunt of your weight, as these two areas push deepest into the mattress. The result is often numbness, tingling and aching arms.

But the Helix Midnight Luxe has plush cushioning at the top of the mattress. This contours to the body, helping distribute weight evenly so it doesn't all concentrate on a few key areas.

Nicola, the Midnight Luxe lead tester, described the bed as 'cradling' the touch points and noted it felt 'like sleeping on a cloud.'

During our pressure relief tests, when we placed a 25kg weight on the bed we observed 4.8 inches of sinkage at the shoulder and 5 inches at the hip. So you can imagine how the comfort foams will yield beneath you.

There is a downside to this body-hugging feel though: both myself and Tom's Guide's Managing Editor of Sleep, Claire Davies, felt wedged in the Helix Midnight Luxe when we re-tested it in the lab in April.

Claire has been sleeping on the Midnight Luxe for two months and still finds it hard to get out of and to move around on. "The Helix is a nice mattress, and definitely a good choice for shoulder and hip cushioning, but I'm looking forward to going back to the Saatva Classic.

"We've proven in the lab that it's more responsive," says Claire, "and it's still my top pick for side sleepers who, like me, want to remain on top of the bed."

Holds the spine straight with minimal strain

Cushioning is just one part of the Midnight Luxe's secret side sleeper weapon. The other is spinal support. Because while sinking into a bed is nice, if your back isn't supported, it's going to put serious strain on your lumbar.

Nicola described the Midnight Luxe as 'blissfully' supportive, holding her spine in healthy alignment to prevent tension.

I was similarly impressed by how well the Midnight Luxe kept my body straight from tip to toe. I'm used to my hips sinking on side sleeper mattresses, which puts pressure on my lower back. However on the Midnight Luxe, I could back and side sleep without feeling my spine had to work.

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