Plank Firm Luxe

Feel & Firmness

• Firmness Level: This mattress is designed with two sides: a "Firm" side and an "Extra Firm" side (hybrid construction). Independent testing ranks it around 7–8/10 (Firm side) and 9/10 (Extra Firm) on the firmness scale.
• Feel Description: You’ll feel a minimal comfort/top layer, then a robust support core - so your body rests very “on” the mattress rather than “in” it. One reviewer described it as “sleeping on a plank” (in the extra-firm side) while the firm side offers slightly more cushioning but still very limited sink. 
• Our Take: With our ratings (Pressure Relief 4/10, Cooling 10/10, Edge Support 10/10, Ease of Movement 9/10), we see this as a specialized mattress:
  • Little in the way of deep contouring—so for people who want “hug” or heavy sink, this is not the sweet spot.
  • Excellent for those who want a very flat, firm surface, high edge usability, minimal sag, and strong cooling.
  • The high ease of movement and strong edge support make it attractive if you get in/out of bed often, use the full surface, share the bed, or have mobility needs.

Construction & Materials

Height: Approximately 13"
Design:

• The Plank Firm Luxe uses a hybrid design with pocket-coils (support core), minimal comfort foam layers, and an optional cooling cover add-on.
• The “flippable” design means you can use either side: a Firm side (slightly more comfort) or Extra-Firm side (maximum firmness).
• Cooling features: reviewers measured excellent temperature regulation thanks to the limited foam sink and strong airflow through coils. For example, one lab measured modest rise in surface temperature during testing.

Why It Matters:

• Firm surface = less hip/shoulder sink, which can help with spinal alignment (especially for back & stomach sleepers).
• Coil core + low sink = easier to move around (our ease of movement 9/10) and strong edge usability (edge support 10/10).
• Limited foam & firm construction = cooler sleep (cooling 10/10 in our rating) since less body heat is trapped.

Performance Breakdown

Sleeping Position Guide

• Side Sleepers: Use with caution. If you’re a side sleeper who needs soft cushioning around shoulders and hips, the Plank Firm Luxe may feel too firm and flat - your pressure relief rating suggests this. If you’re heavier (230+ lbs) and prefer firm surfaces, major alignment may be fine.
  

• Back Sleepers: Very good match. The firmness helps maintain spinal alignment without excessive sink; excellent edge support and movement ease make it a strong choice.
  

• Stomach Sleepers: Strong match, particularly if you're average or heavier weight. The solid lift is good for preventing hip sag and maintaining alignment. Review testing supports this.
  

• Combination Sleepers: Good option, especially if you shift positions and want a stable, responsive surface - but if you occasionally side-sleep and require more contour, test in-store.
  

• Couples / Shared Bed: If partner motion and edge use are important, this mattress excels in edge support and movement ease - but partner motion may be felt more than on foam beds, so ensure you test motion isolation in-store.

Value, Warranty & Buying Tips

• Category: Luxury hybrid mattress
  

• Typical Price (Queen): Approximately $1,732. As a luxury hybrid firm mattress, it sits above many standard models - expect premium pricing (though discounts often apply).
  

• Trial & Warranty: 120-night trial and limited lifetime warranty.
  
  

Seattle Showroom Buying Tips:

• Bring your usual pillow and spend at least 10-15 minutes lying down in your typical sleep positions (back, stomach, side) so you can assess how the firmness feels.
• Since this mattress is very firm and low-sink, test how your hips contact the surface and whether your shoulders/hips feel overly pressured (especially as a side sleeper).
• For couples: one partner lies still, the other moves or shifts—see how much motion you feel and how the mattress transitions.
• Check your fitted sheets and bed frame compatibility - firm/hybrid beds often sit taller than expected, and edge stability matters if you sit or lounge near the edge frequently.

Why Shop Local?

Try Before You Buy — Right Here in Seattle

Visiting our Seattle mattress showroom gives you an opportunity to lie on the Plank Firm Luxe and compare it side by side with other mattresses of varying firmness, materials and support profiles. Our team will help you:

• Match your sleep position, body type and comfort preference with the right mattress feel.
• Understand how this ultra-firm mattress compares with more typical medium-firm and plush models so you feel confident in your pick.

Local testing matters especially for a mattress like this where feel, alignment and personal preference play large roles.

Final Verdict

The Plank Firm Luxe is a specialist mattress built for sleepers who want minimal sink, strong alignment, high edge support, and excellent cooling. It shines for back and stomach sleepers, heavier body types, combination sleepers who shift positions, and couples wanting strong edge and movement ease. For side sleepers or anyone seeking plush cushioning and strong hip/shoulder contour, you may want to test alternative models with softer feel.

Best For:

• Back and stomach sleepers who prefer firm surfaces.

• Hot sleepers needing strong cooling performance.

• Combination sleepers who change positions and want easy movement.

• Couples or bed users who prioritize edge support and full-use of the bed surface.

Not Ideal For:

• Side sleepers wanting deep contour or plush “hug”.

• Sleepers who desire a mattress they sink into (rather than on top of).

• Shoppers wanting a soft or medium plush feel - this mattress is very firm.

If you’d like to test the Plank Firm Luxe in a Seattle mattress store, we’re ready for you at our showroom. We’ll walk you through the feel, compare it directly with other options, and help you decide whether this ultra-firm build is the right fit for your sleep style.