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These firm memory foam mattresses prioritize support over padding, but which is better?

A queen will generally set you back $999, reduced from an MSRP of $1,332.

The Plank Firm mattress on a bed frame in a bedroom (left) and the Siena Memory Foam Mattress on a bed frame in a bedroom (right)

But when it comes to pricing, the Siena Memory Foam Mattress comes out on top.

We think it’s thebest cheap mattressaround and it’s excellent value for money.

The Siena deal rarely changes, although we have spotted a queen on sale for only $379 before.

Plank Firm mattress - deal block

But for the most part, Siena tends to keep the deals the same, regardless of the occasion.

Despite being the cheaper mattress, Siena offers better benefits.

You’ll get a 180-nightsleep trialat Siena, compared to just 120-nights to test the Plank Firm.

Siena memory foam mattress on a white background

Both offer a 10-year warranty, which is the industry average.

In the center of the Plank Firm are six inches of incredibly dense support foam.

It’s this foam that pretty much dictates the overall feel of the Plank Firm.

Plank Firm Mattress: was from $749$561.75 at Plank Mattress

On one side, the mattress is Firm, on the other, Extra Firm.

On the Extra Firm side, there’s just a .75-inch quilted top between you and the support foam.

The Siena has a simpler build, consisting of just two foam layers.

Siena Memory Foam Mattress: was from $529$199 at Siena

Both mattresses are vacuum packed, rolled, and delivered in a box.

However, that’s not unusual from even thebest mattresses in a box.

A firm mattress generally fits in the 8-10 bracket.

A person lies in a back sleeping position on top of the Plank Firm mattress on the Extra Firm side

This gives the Plank Firm a ‘lifted’ feel.

You don’t just lie on top of the mattress, you almost feel pushed up by it.

On the Firm side, the jump and track quilting gives some slight padding.

Siena Memory Foam Mattress side lying test

The Siena is also incredibly firm we rated it nine out of 10 in ourSiena Memory Foam Mattress review.

However, the Siena does have slightly more of that traditional sink.

But once you’ve got past the initial cushioning, the firmness comes through.

A hand rests against the surface of the Plank Firm mattress, Extra Firm side, testing the temperature regulation and pressure relief

Foam mattresses are generally known for their ‘hug’ effect, as the material contours to the body.

But you won’t get much of that with either of these models.

However, we do recommend the Plank Firm and Siena for back and front sleepers.

Plank Firm Mattress - Twin

Both mattresses offer good motion isolation, so we would recommend them for couples.

The foams absorb your partner’s tossing and turning so you won’t be woken up in the night.

Plank Firm vs Siena Mattress: temperature regulation

The Siena impressed us with its temperature regulation.

Plank Mattress

However, neither mattress can offer the same all-night temperature control of thebest cooling mattresses.

Plank Firm vs Siena Mattress: which should you buy?

You have changing sleep needs:Want more support?

siena memory foam mattress

Go for the Extra Firm side.

The dual-design gives versatility for people with changing needs, such as those with reoccurring injuries.

We think it’s one of the best budget mattresses around.

Siena

the siena essential memory…

The Nectar Classic Memory Foam Mattress on a bed frame (left) and th Siena Memory Foam mattress on a bed frame (right)

The Nectar Classic Memory Foam Mattress on a bed frame in a bedroom (left) and the Siena Memory Foam Mattress on a bed frame in a bedroom (right)

The Plank Firm Mattress on a bed frame (left) and the Puffy Cloud mattress on a bed frame (right)

A split screen of the Leesa Sapira vs the Helix Midnight Luxe mattress

Nectar Classic vs Nectar Premier memory foam mattresses in sleep studio with blue wall, bedside chair, rattan rug, wooden bedside table, lamp and pampus grass

A split image featuring the Nectar Classic Memory Foam Mattress on the left and the DreamCloud Luxury Hybrid on the right, leading into the DreamCloud Luxury Hybrid vs Nectar Classic showdown

The Tempur-Pedic Tempur-Adapt mattress on a bed frame in a bedroom, a man and his young sun sitting on top of it, smiling. A Tom�s Guide price drop deals graphic (right)

Bed bugs

The Saatva Murphy Bed Mattress on a Murphy bed frame lying flat, in a bedroom

The image shows the Casper Hybrid with Snow Technology pillow on the left and the Coop Cool+ pillow on the right in a side by side comparison

A child lying on their side covering their eyes in bed

The LG C5 (on left) faces off against the Samsung S95F (on right).

HDMI input

google pixel 9a and google pixel 8a in white and black side by side

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