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An adjustable pillow is useful only if its adjustment method is easy enough that you will actually use it. Some pillows let you remove handfuls of shredded fill for almost continuous loft control. Others use removable booster layers that give you a few clean height settings. A shoulder-cutout design changes both height and geometry at the same time.
The practical test for back-sleeper pillow thickness is whether the measured dimensions still provide the intended coverage or support in use.
The best choice depends on how much experimentation you want, whether you sleep hot, and how comfortable you are opening a pillow and handling loose foam.
Accurate adjustable pillow loft starts with finished measurements and allows for compression, added layers, and the required coverage.
Best Overall
Best Layered Adjustment
Best for Side Sleepers
Adjustable Pillows at a Glance
| Pick | Adjustment method | Best for | Main tradeoff |
|---|---|---|---|
| Coop Original | Add/remove shredded foam + microfiber | Fine-grained loft tuning | Fill needs fluffing and can clump over time |
| Purple DreamLayer | Remove 0, 1, or 2 booster layers | Clean step-by-step height changes | Heavy, expensive, and soft sink is not for everyone |
| Eli & Elm | Add/remove fill in U-shaped side-sleeper pillow | Shoulder clearance | Contour fit and ear pressure can still miss |
| Coop Cool+ | Add/remove cooling plus-shaped foam fill | Hot sleepers who want adjustability | Cooling fades for some users; very full at factory setting |
| QUTOOL Cooling 2-Pack | Add/remove shredded foam in two pillows | Budget two-pack | Chunky feel and weak cooling evidence |
Our Top Picks
1 / 5
Coop Home Goods Original Adjustable Pillow
Fill
Cross-cut memory foam + microfiber
Loft
Continuous adjustment
Size
Queen
Extra fill
Included
Cover
Removable
Coop Original is the most straightforward adjustable pillow in this group. Open the inner liner, remove fill to lower the pillow, or add the included extra fill if you need more loft and firmness.
The practical test for pillow selection by sleep position is whether the measured dimensions still provide the intended coverage or support in use.
That simple mechanism gives you finer control than a fixed-height pillow or a few preset layers. It is particularly useful if you are unsure whether your mattress and sleep position call for a high or low profile.
Judge pillow temperature performance by sustained airflow, moisture handling, insulation, and room conditions rather than first touch alone.
The tradeoff is maintenance. Shredded fill can lose plumpness temporarily, clump, or need redistribution, and some long-term users report changes in material feel or cover stretch. If you do not mind fluffing and occasional adjustments, the control is still hard to beat.
Why it works
- Continuous add/remove adjustment rather than preset heights.
- Extra fill is included.
- Shredded fill can be shaped beneath the neck.
- Works across several sleep positions when correctly tuned.
What to keep in mind
- Loose fill requires more upkeep than a solid core.
- Some sleepers need to remove a large amount before the head angle feels right.
- Long-term fill clumping is possible.
2 / 5
Purple DreamLayer Pillow
Core
MicroAir Foam + GelFlex Grid
Adjustment
Two removable boosters
Heights
5, 6, or 7 in
Size
Standard
Feel
Medium soft
Purple DreamLayer takes a cleaner approach to adjustment. Instead of opening a chamber full of foam pieces, you add or remove two booster layers to choose among three stated heights: 5, 6, or 7 inches.
That makes it easier to recreate a preferred setup after washing the cover or moving the pillow. The GelFlex Grid and MicroAir Foam create a soft, contouring feel, and the open design is intended to avoid some of the heat buildup associated with dense memory foam.
The tradeoff is that three height steps are less precise than loose fill. The pillow is also heavy and expensive, and some sleepers sink farther into the soft surface than they want. Initial foam odor can take time to fade.
Why it works
- Booster layers make height changes clean and repeatable.
- Three loft choices cover a useful range.
- No loose foam to spill or redistribute.
- Grid-and-foam construction offers a soft contouring feel.
What to keep in mind
- Height adjustment is stepped, not infinitely fine.
- Pillow is relatively heavy.
- Soft sink can reduce effective loft more than expected.
- Price is high for a fit that remains personal.
3 / 5
Eli & Elm Side Sleeper Pillow
Fill
Adjustable latex-based fill
Shape
U-shaped shoulder cutout
Loft
Adjustable
Size
Queen
Cover
Breathable
Eli & Elm combines fill adjustment with a U-shaped shoulder cutout. That makes it the most specialized adjustable pillow here: changing the fill changes the height, while the contour changes how the pillow meets the shoulder and neck.
The design can be useful for side sleepers who find that traditional rectangular pillows sit on top of the shoulder and push the neck upward. The fill can be reduced when the pillow feels too tall.
The shape is also the main risk. Some sleepers like the cutout; others find the pillow small, too flat after use, or uncomfortable around the ear. Adjustability cannot completely rescue a contour that does not match your body.
Why it works
- Shoulder cutout addresses side-sleeper geometry directly.
- Fill can be removed to reduce height.
- Breathable fill and cover improve airflow.
- More specialized than a general rectangle.
What to keep in mind
- Handling loose fill can be messy.
- Ear pressure can still occur if the surface is too firm.
- Some users report loss of support over time.
4 / 5
Coop Home Goods Cool+ Adjustable Pillow
Fill
Gel-infused plus-shaped memory foam + microfiber
Loft
Adjustable
Size
Queen
Surface
Two-sided cooling
Extra fill
Included
Coop Cool+ keeps the same basic add-or-remove concept as the Original but makes cooling the priority. The fill uses gel-infused plus-shaped foam pieces intended to create more airflow, and the pillow has two different cooling-oriented sleep surfaces.
For hot sleepers who also need loft control, that combination is appealing. Some users report a meaningful improvement in temperature, while others say the cool sensation fades or becomes less noticeable once a normal pillowcase is added.
The pillow can also be extremely full at the factory setting. If your head is pushed too high, remove fill before deciding the pillow is simply too firm.
Why it works
- Adjustable fill solves loft before temperature becomes the deciding issue.
- Plus-shaped foam creates more open space between pieces.
- Two-sided surface lets you choose a different feel.
- Extra fill supports higher profiles.
What to keep in mind
- Cooling performance is inconsistent.
- Standard pillowcases can mute the cold-touch surface.
- Full factory fill may be much too tall.
5 / 5
QUTOOL Cooling Pillow 2-Pack
Fill
85% cross-cut memory foam + 15% microfiber
Quantity
2
Size
Queen
Loft
Adjustable
Cover
Dual-sided
QUTOOL is the value choice if you want two adjustable pillows rather than one premium pillow. Each uses shredded foam and microfiber, and the fill can be removed to reduce loft.
The adjustment concept is sound, but customer evidence raises more consistency concerns than the higher-ranked options. Some users find the foam chunks noticeable, the pillows too large, or the final loft uneven after expansion. Cooling feedback is especially weak.
Choose it for two-pillow value and basic adjustability, not for temperature performance.
Why it works
- Two queen pillows are included.
- Fill can be removed to change loft.
- Dual-sided cover provides two surface textures.
- Lower cost than premium adjustable designs.
What to keep in mind
- Shredded chunks may feel uneven.
- Cooling is often minimal through a pillowcase.
- Final expansion and fullness vary.
How to Set Up an Adjustable Pillow
Change one thing at a time
Use the pillow for a night or two at its initial setting unless the height is obviously uncomfortable. Then remove or add a small amount of fill. Making large changes every few hours makes it harder to identify the setting that actually works.
Focus on head angle, not perceived fluffiness
A pillow can look beautifully full and still push your neck out of position. Side sleepers generally need more loft; back sleepers need less; stomach sleepers usually need the least. Mattress firmness changes the exact amount.
Store removed fill
Keep extra fill in a clean, dry, sealed bag. Your preferred height can change with a new mattress, different sleep position, or compression of the fill over time.
Refluff before adding more material
A pillow that looks flat may simply need its fill redistributed. Fluff and separate clumps before assuming you need more foam.
Consider layered adjustment if loose fill annoys you
If you dislike handling shredded foam, a booster-based pillow such as Purple DreamLayer is much cleaner. You give up fine-grained control but gain repeatability.
Frequently Asked Questions
Are adjustable pillows better than fixed pillows?
They are better when you are unsure about loft or your needs change. Fixed pillows are simpler when you already know the exact height and feel you prefer.
How much fill should I remove?
Remove small amounts until your head and neck feel neutral in your normal sleep position. There is no universal amount because body size and mattress firmness differ.
Do adjustable pillows go flat?
Shredded-fill pillows can compress and need fluffing. That does not always mean the material has permanently failed, though some fills do degrade or clump over time.
Are adjustable pillows good for side sleepers?
Yes, because side sleepers often need precise loft to fill the shoulder-to-head gap. A shoulder-cutout adjustable design can add another fit advantage.
Are cooling adjustable pillows worth it?
They can be if the pillow's support and loft already suit you. Cooling should be treated as a secondary benefit because cold-touch effects often fade or become less noticeable through a pillowcase.
Compare these with the broader best bed pillows and the position-specific best pillows for side sleepers.
