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  • Cosari ZeroDrift 0.45
  • Cosari ZeroDrift 0.45
  • Cosari ZeroDrift 0.45
  • Cosari ZeroDrift 0.45
  • Cosari ZeroDrift 0.45
  • Cosari ZeroDrift 0.45
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Cosari

Cosari ZeroDrift 0.45

£46.00 £91.00

Free tracked shipping to the US

  • Q-Max 0.45 Japanese Arc-Chill cooling yarn
  • Drops skin-surface temp 4.2°F in 30 seconds
  • 30-Night Sweat-Free Sleep Trial

Features

1. It pulls heat off your skin on contact

1. It pulls heat off your skin on contact

The 0.02mm Arc-Chill filaments carry cooling mineral particles inside the yarn. When skin touches the fabric, heat moves into it quickly, which gives you the 4.2°F cool-down you feel within 30 seconds.

2. It vents humidity all night

2. It vents humidity all night

Below the cooling top, the hollow-core fill and moisture-wicking underside keep air moving upward. Vapor escapes before it can condense, so you don't wake up in a swamp.

3. It goes straight in your washer

3. It goes straight in your washer

The wave-baffle stitching locks the fill in place, so you can wash it on cold gentle as often as you need to. It comes out flat, even and ready for the bed.

  • Feels Cooler in 30 Seconds

    The skin surface drops 4.2°F on contact, and every spot you shift to feels cool again.

  • Light but Still Covering

    150 GSM is enough weight to feel tucked in without holding heat on top of you.

  • Q-Max 0.45 Heat Transfer

    The Arc-Chill top weave pulls heat from your skin about 2.2× faster than cotton, so it feels cool on contact and stays cool when you move.

  • Breathable Moisture Venting

    A hydrophilic underside and 150 GSM hollow-core fill let water vapor escape before it can turn into sweat under the covers.

  • Anti-Clump Wave Quilting

    Continuous 3.5-inch wave-baffle lock-stitching holds the fill in place through 50+ wash cycles. No lumps and no cold spots.

  • Machine Washable at Home

    Cold gentle cycle, no-heat dry, and back on the bed in under an hour. You never need to dry-clean a comforter you bought for night sweats.

How to use it

  1. Unpack
    1

    Unpack

    Lift the comforter out of its mesh bag. It arrives pre-washed for softness, so you can use it right away.

  2. Spread It Out
    2

    Spread It Out

    Lay it straight over your fitted sheet with the silky cooling side facing up. You don't need a duvet cover.

  3. Sleep Cool
    3

    Sleep Cool

    Get in and feel it pull the heat away. Stay under the covers all night and wake up dry.

In the box

  • 1 × Cosari ZeroDrift 0.45 Cooling Comforter (Queen/Full, 90 × 90 in)
  • 1 × Reusable Breathable Mesh Wash & Storage Bag
  • 1 × Care & Thermal Guide Card

Care & safety

  • Wash on a cold gentle cycle inside the included mesh bag with a mild detergent. Skip fabric softener and bleach, because both coat or weaken the cooling yarn.
  • Tumble dry with no heat, or hang it over a rail or banister. It's usually dry in under 45 minutes on a no-heat tumble, or in about an hour when hung.

Specifications

Cooling Rating
Q-Max 0.45 W/cm²
Top Fabric
Japanese Arc-Chill cooling yarn, 0.02mm multi-filament, mineral particles extruded into fiber core
Underside
Hydrophilic moisture-wicking matte grip weave
Fill
150 GSM 3D hollow-core breathable fiber
Quilting
Continuous 3.5-inch wave-baffle lock-stitch, reinforced piped edge
Size
Queen/Full, 90 × 90 inches
Power
None. Passive cooling textile with no wires or electronics

Questions

Will it slide off my bed during the night?

No. The silky cooling side faces you, and the underside is a soft matte grip weave that holds onto a fitted sheet. It stayed put through 14 nights of restless sleepers in our trial.

Do I need a duvet cover?

No, and we don't recommend one. The Q-Max 0.45 top works best directly against your skin. Corner loops are included if you'd rather use a light cover anyway.

Will the cooling wash out?

No. The cooling mineral particles are extruded into the core of the Arc-Chill yarn instead of being sprayed on, so they don't rinse out in the laundry.

What size is it?

The Queen/Full measures 90 × 90 inches, which is generous enough to cover two sleepers even when one of you rolls over.

How much is shipping?

Shipping to the US is free and tracked. You get a tracking number by email when your order ships. See the shipping policy for delivery times.

Can I return it?

Yes, within 30 days of delivery. Details are in our refund policy.

Who sells this product?

Cosari is run by Interactive Ecommerce LLC, Sheridan, Wyoming. Questions: contact@cosarit.com, Monday to Friday, 9:00–17:00 ET.