HARBOREST Cooling Cube Pillow - 12x12x5 Side Sleeper Memory Foam, Reversible Cooling Cover & Adjustable Firmness

HARBOREST Cooling Cube Pillow is a 12"x12"x5" reversible memory foam cushion engineered for side sleepers who want targeted neck and shoulder support with a cool, breathable cover.

If you sleep on your side and wake with tight shoulders or a sore neck, the HARBOREST Cooling Cube Pillow is built to stabilize head alignment while reducing heat buildup. The pillow combines a cooling fiber pillowcase with a two-density foam core so you can customize the feel without buying multiple pillows. It ships compressed and recovers to its full cube shape within an hour, and the removable cover is machine washable for simple care.

How does this pillow stay cool through the night?

The outer case is woven with 50% frozen cooling fiber to create a breathable layer that disperses heat and increases airflow around your head and shoulders. That cooling fabric works with the open-cell memory foam to avoid trapping body heat. You’ll notice a cooler surface compared with standard polyester cases, especially helpful in warm seasons.

• Cooling fiber case contains 50% frozen cooling material for temperature regulation
• Breathable fabric promotes airflow around the foam core
• Open-structure foam reduces heat retention versus dense foams

Can I adjust firmness to suit my sleep position?

Yes — the cube uses a reversible memory foam design with one softer third and two-thirds firmer high-resilience sponge, so you can flip or orient the pillow to change support. The sponge’s feel will vary slightly with room temperature (firmer in cold conditions, softer when warm), giving you seasonal flexibility without extra inserts. Choose the cube thickness that matches your shoulder height for best alignment.

• One side: softer memory foam third for gentle cradling
• Other side: two-thirds high resilience sponge for firmer support
• Select from thickness options to match shoulder-to-head distance

How do I care for the HARBOREST Cooling Cube Pillow?

The pillowcase is removable and safe for machine washing, which helps keep the surface fresh and prolongs the pillow’s life. The foam core ships compressed — allow 30–60 minutes at room temperature (or up to 24 hours for full expansion) to recover its shape. Any initial factory scent will dissipate in a well-ventilated space within a day.

• Remove and machine wash the cooling cover on gentle cycle
• Allow foam 30–60 minutes (up to 24 hours) to fully expand after unpacking
• Airing the foam in a ventilated room eliminates temporary odors

Will this pillow support side sleepers of different body types?

The cube shape offers a compact, consistent surface that stabilizes head position for many side sleepers. Because HARBOREST provides multiple thickness choices and a reversible core, you can fine-tune height and firmness to better align your neck with your spine. While it’s optimized for side sleeping, some back sleepers may also find the firmer orientation supportive.

• Multiple thickness options to match shoulder width and neck length
• Reversible core lets you trade softness for firmness without extra products
• Square 12"x12" footprint keeps head centered and reduces roll-off

Who is this for? The HARBOREST Cooling Cube Pillow suits side sleepers seeking a compact, cooler-feeling memory foam option with adjustable firmness. It’s a good choice for people who prefer a low-profile square pillow that can be flipped or oriented to change support, those living in warmer climates who need breathable fabrics, and anyone who values an easy-care removable cover and quick recovery from compressed shipping.