After our research, we believe that the Plank mattress has the following main features:
- Extra firm and firm mattress in one
- Quilted top layer
- Optional cooling layer
- High density foam
- 120-night trial
- Shipped in a box to your door
- 10-year warranty
At 11.75 inches tall, the flippable Plank extra firm mattress contains 4 layers. High density foam and quilted top layers combine to create support and comfort. An optional cooling layer adds temperature control and prevents overheating.
Extra Firm Side
The extra firm side of the Plank mattress has a .75-inch quilted top layer with patterned stitching. This construction provides an ultra-firm sleep surface. On a firmness scale of 1 to 10, the extra firm side has a rating of 9.5 to 10.5. The next step up in firmness would be sleeping directly on the floor with no comfort cushioning.
The firm side of the mattress has a 1.5-inch quilted top layer with tack-and-jump stitching. Just below the quilted layer is a 2-inch layer of TitanFlex comfort foam. These layers combine to provide a traditional firm sleep surface, with a rating of 7.5 to 9 on a firmness scale of 1 to 10.
Flatter Sleep Surface
Both sides of the Plank mattress provide a firm, flat sleep surface that keeps your spine in a neutral position. This level of support lets your spine stay aligned and prevents pressure on your shoulders and hips. An extra firm or firm mattress helps prevent back pain and posture problems by providing support and pressure relief in these key areas.
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High Density Base Foam
After years of use, a mattress can sag in the middle and edges, creating an uneven sleep surface. A 7-inch layer of high density base foam adds stability and durability to your Plank mattress. This layer helps maintain a flat, even surface that keeps your spine in a neutral position.
Optional Cooling Panel
An extra firm mattress absorbs less body heat in the first place, but the Plank mattress goes a step further. An optional TitanCool cooling panel is available for either side of the mattress. Made from premium phase change molecule (PCM) fabric, the breathable cooling layer is stitched into the top mattress panel. When your body rests on the mattress, the PCM fabric combines with the open-cell foam to keep the surface cool on contact.
Part of choosing the right mattress is considering the size of your bedroom and bed, and whether the mattress is for a single sleeper or a couple. The Plank extra firm mattress is available in the following range of sizes:
- Twin XL
- King/California King
Works With Most Beds
The Plank extra firm mattress will work with a wide range of foundations, including platform, slat and box spring. Ideally, the foundation should have sturdy support with little or no flex. Examples of suitable foundations include:
- Slatted metal with no more than 4 inches between slats
- Wood box foundation
- Metal box foundation
- Solid wood platform
- Solid metal platform
Shipped in a Box
Plank mattresses are shipped in a box and delivered to your door. The mattress is compressed to fit in the box, but it will decompress after you take it out of the box. The company offers free shipping (US states), except for Alaska and Hawaii. Shipping is available for Alaska and Hawaii for an additional charge.
A full 10-year warranty covers manufacturer defects and unusual early signs of wear. The warranty begins on the date that you purchase your Plank mattress. You can read for the latest details about the warranty on the company website. Examples of warranty coverage include:
- Defects or deterioration in the mattress foam cell structure.
- Defects that result in splitting or cracking of mattress materials, provided that mattress is handled properly and used normally.
- Impressions greater than 1 inch in the comfort foam.
- Sagging, provided that the supporting foundation has little or no flex and solid center support.
The only way to know if a mattress will help you get a good night’s sleep is to actually sleep in it over an extended period of time. The Plank extra firm mattress comes with a 120-day sleep trial. If you decide it’s not the right mattress for you, just let the company know within 30 to 120 days after you receive it. You will be able to return the Plank mattress or exchange it for another mattress.
Plank Extra Firm Mattress Review: Pros and Any Limitations
After our research and review, we believe that the Plank mattress has the following advantages as well as minor limitations.
Support for Your Spine
Does back pain keep you tossing and turning all night? Do you wake up stiff and sore every morning? The right mattress can make a big difference. The Plank extra firm mattress keeps your spine properly aligned and relieves pressure on your hips, neck and shoulders. The extra firm surface can also help promote blood circulation and improve posture.
The mattress firmness that you need today may be different next year. For example, the back pain that led you to choose an extra firm mattress may be gone in a few months. With the flippable Plank mattress, you don’t necessarily have to buy a new mattress when your sleep preferences change. Simply flip the mattress and enjoy the comfort of a firm sleep surface.
Having customizable mattress firmness is also helpful if you have changed sleep position. For example, if you have switched from sleeping on your side to sleeping on your back or stomach, you may need to switch from firm to extra firm for support and alignment.
The optimal skin temperature for sleep is 88 degrees. With the average skin temperature at 91 degrees, it’s not surprising that many people feel too warm in bed. The Plank mattress helps keep you cool in two ways. First, the foam layers have an open cell structure that prevents heat retention. Secondly, the optional cooling layer is made from breathable PCM fabric. These materials combine to keep the mattress at a neutral temperature so that you can sleep comfortably.
The Plank mattress is conveniently delivered to your door in a box. You don’t have to schedule an appointment or take time off from work to wait for a furniture delivery team. After you order your Plank mattress, you can get on with your life and know that the mattress will be in a box on your doorstep when you get home.
Risk-Free 120-Night Trial
A risk-free trial takes some of the pressure off choosing a mattress. With the Plank mattress, you get a 120-night trial period to decide if you want to keep it. You can return the mattress 30 to 120 days after you receive it. Since it can take weeks to fully break in a mattress, the trial period is a valuable feature.
Mattress Decompression and Airing Out
When the Plank mattress is shipped, it is compressed and rolled up to fit inside the box. When you receive the mattress, you will have to wait up to 24 hours for it to decompress and air out. To speed up aeration, you can gently walk across the mattress and keep the mattress in a well ventilated room for the first 24 hours.
Concluding Thoughts on Plank Extra Firm Mattress
The Plank mattress offers customizable support and cooling technology for a comfortable night’s sleep. The flippable mattress has an extra firm side for maximum support for your spine and pressure relief for your joints. If you don’t need extra support, you can flip the mattress to the firm side. The optional cooling layer combines with Plank’s open cell foam layers to prevent overheating.
The mattress is available in a full range of sizes, from twin to king/California king. It is suitable for most foundations that have little or no flex, such as wood or metal foundations, slatted metal and solid wood or metal boxes.
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Shipped in a box, the Plank mattress is conveniently delivered to your door. You don’t have to deal with scheduling an appointment for delivery. The only inconvenience is having to let the mattress air out and decompress for 24 hours before you can use it.
The 120-night trial period provides ample time to try the mattress in your home. If it just isn’t working out for you, you can return the mattress within 30 to 120 days after it is delivered.
The 10-year warranty covers manufacturing defects and signs of wear that are earlier than usual. For example, the warranty covers cracks or deterioration that occur despite proper handling and normal use.
After our research and review, we believe that the Plank extra firm mattress is a quality product of value.