PREMIUM SLEEP COOLING

The Zephyra Fan

★★★★★ 4.8 · 1,240 reviews

A gentle current of air beneath your sheets that carries trapped heat away — so you wake rested, not drenched.

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Whisper-quiet, adjustable airflow
Fits any bed height, sets up in 60 seconds
Cools your bed, not your whole house
60-night sleep trial Complimentary shipping Whisper-quiet Secure checkout

Cool air, exactly where it's needed

1
Tuck it in

Rests at the foot of the bed, nozzle between the sheets. Under a minute.

2
Tune the airflow

Step-less dial from a whisper to a full flush of cool air.

3
Sleep through

Trapped heat and moisture leave the bed. No 3am covers battle.

Zephyra moves your room's air to flush trapped heat — it doesn't refrigerate it.

Engineered for a cooler, quieter night

Precision speed control

Step-less dial and status LED for the exact airflow you want.

Fits any bed height

Adjusts from low-profile frames to tall pillow-tops.

Stable, secure mounting

Interlocking tubes stay put — no wobble.

Whisper-quiet

Runs quietly enough to sleep beside, all night.

A more considered kind of cool

Zephyra
The AC
Sheets
Cools the bed directly
Won't chill the whole house
Stays cool all night
Affordable
INSIGHTS & RESEARCH

The science of sleeping cool

Cooling isn't a comfort preference — it's how your body falls and stays asleep. Here's what the research says.

Up to 80%
of women get hot flashes & night sweats through menopause
1–2°F
your core temperature must fall to trigger sleep
52%
of adults sleep hot — and 94% of them wake from heat
60–67°F
the research-backed ideal bedroom temperature

Cooling is a sleep signal

The evening drop in core body temperature is one of the primary mechanisms that make you sleepy — not a side effect. Trap that heat and the signal is blunted.

Source: sleep thermoregulation research

Overheating wakes you

Most people who run hot at night wake because of it — and women are roughly twice as likely as men to wake several times a week from heat.

Source: hot-sleeper survey

Menopause runs hot for years

Night sweats affect the large majority of women through menopause, with a median duration of over seven years — not weeks.

Source: SWAN menopause study

It all points to the same fix

To sleep well, the body needs to shed heat — and the hardest heat to shed is the pocket trapped under your blanket, where a room fan can't reach. Zephyra works on that exact microclimate, moving air between the sheets so trapped heat and moisture can leave the bed.

Sources (link before publishing): 1. Sleep & thermoregulation, Frontiers in Neuroscience / peer-reviewed sleep science. 2. Bedroom temperature, Sleep Foundation. 3. Hot-sleeper survey of 1,008 U.S. adults, Amerisleep. 4. Vasomotor-symptom prevalence & duration, SWAN / UpToDate.

General research on sleep, temperature, and menopause, shared for context. Zephyra is a comfort product, not a medical device, and is not intended to diagnose, treat, cure, or prevent any condition.

Loved by hot sleepers

★★★★★

"Menopause made nights unbearable. First full week I've slept through in months."

Linda R. · verified buyer
★★★★★

"My husband is a furnace. Two of these and we finally stopped fighting over the AC."

Dana M. · verified buyer

Questions, answered

Is it loud?

No — it's built to run quietly at sleep settings. Turn it up to pre-cool, then dial it down for the night.

Will it wake my partner?

The airflow stays under your sheets. Add a second and each side runs independently.

Does the air actually come out cold?

It isn't an AC — it moves your room's air to carry trapped heat and moisture out of the bed, which is what leaves you cooler and drier.

Will it fit my bed?

It adjusts to most bed heights and tucks discreetly at the foot.

What if it's not for me?

A 60-night trial. Return it for a full refund, no fuss.

Cooler sleep, entirely risk-free.

60-night trial · complimentary shipping · secure checkout