Does graphite-infused foam really sleep cooler?

It conducts heat away faster than plain foam, so it feels cooler at first. The effect diminishes across a full night.

Is the Purple Harmony too bouncy?

Some people never adapt to it. Use the trial period — the feel is polarising in a way the specs cannot convey.

Which suits side sleepers better?

The Harmony in its taller loft, mainly because it resists collapse. Match either to your shoulder width.

Can the covers be washed?

Yes on both. The cores are spot clean only.

Saatva Memory Foam vs Purple Harmony Pillow

Compared from manufacturer specifications and our research — neither pillow has been hands-on tested yet · See how Mr. Squish tests pillows

Option A

Saatva Memory Foam Pillow

Saatva · Gel Memory Foam · Medium

Graphite-infused gel memory foam pulls heat away while a plush organic cotton cover keeps things luxurious. A standout cooling pick.

9.1/10 · from $165

Read the full review

Option B

Purple Harmony Pillow

Purple · Talalay Latex + GelFlex Grid · Medium

A Talalay latex core wrapped in Purple's honeycomb GelFlex Grid. It feels like floating instead of sinking, sleeps remarkably cool, and comes in three heights for different sleep positions.

9.3/10 · from $229

Read the full review

Both of these market themselves on sleeping cool, but they get there differently. Saatva uses graphite-infused gel memory foam, which pulls heat away from the head by conduction. Purple uses an open grid, which lets heat leave by airflow.

Conduction fades once the material warms up; airflow does not. That single distinction drives most of the difference between them. Details below are from manufacturer specifications and owner reports, not hands-on measurement by Mr. Squish.

Side by side

	Saatva Memory Foam Pillow	Purple Harmony Pillow
Fill	Graphite-infused gel memory foam	Talalay latex core in hyper-elastic grid
Feel	Contouring, slow sink	Buoyant, springy
Cover	Organic cotton	Stretch knit
Cooling mechanism	Conductive — draws heat away	Structural — air moves through
Adjustable	No	No
Best positions	Back, side	Side, back, combination
Weight	Moderate	Heavy

Which is actually cooler

For the first stretch of the night the Saatva feels cooler to the touch, because graphite conducts heat away quickly. Later in the night that advantage narrows as the foam equilibrates with your body temperature.

The Harmony has no dramatic cool-touch moment but keeps moving air all night. For someone who wakes at 3am flipping the pillow, the grid is the better bet.

Feel and support

If you like the sensation of your head being cradled, memory foam gives you that and the grid never will. If you dislike the sinking, stuck feeling, the Harmony is the answer.

Support-wise both hold up well; the Harmony resists bottoming out more strongly, which matters for broader-shouldered side sleepers.

Price, weight and upkeep

Both are premium. The Harmony is noticeably heavier, which is worth knowing if you reposition your pillow often or have wrist or shoulder issues. Covers are washable on both; neither core goes in a machine.

Pick Saatva Memory Foam Pillow

Choose the Saatva Memory Foam pillow if you want contouring and a luxurious organic cotton finish, with cooling as a bonus rather than the main event.

Ready to give it a squish?

Check Saatva price

Pick Purple Harmony Pillow

Choose the Purple Harmony if overheating is your primary complaint or you dislike the sink of memory foam.