THE JOURNAL

The Science Lab

Research-backed writing on sleep, fabric, skin, hair and the science behind better rest.

A bed made up with a Soft Cashmere eucalyptus lyocell duvet cover, the washable outer layer of a duvet system

9 min read

What is a duvet cover? 9 questions answered before you buy

Written by Robert Smith, MD, FAADBoard-Certified Dermatologist & Sleep Medicine Physician · Last updated: August 2026 A duvet cover is a protective fabric shell that slips ...

A bed made up in Soft Cashmere eucalyptus lyocell pillowcases, the surface one side of the face presses into all night

8 min read

Smile lines: why yours are deeper on one side, and 5 things that actually help

Written by Megan CaldwellAttending Dermatologist at Northwestern Medicine Dermatology Naperville · Last updated: August 2026 Smile lines, or nasolabial folds, are the creases r...

A calm bedroom with a bed made up in Soft Cashmere eucalyptus lyocell bedding, the surface the neck and chest press against overnight

8 min read

Neck wrinkles: there are 2 kinds, and your cream only treats one

Written by Megan CaldwellAttending Dermatologist at Northwestern Medicine Dermatology Naperville · Last updated: August 2026 There are 2 kinds of neck wrinkles, and almost ever...

Clean white eucalyptus lyocell pillowcases on a made bed, the surface skin rests against for 8 hours a night

8 min read

Fungal acne vs bacterial acne: 5 signs you are treating the wrong one

Written by Travis HollowaySenior Microbiologist at UCB · Last updated: August 2026 The fastest way to tell fungal acne from bacterial acne is the itch. Fungal acne itches. Ordi...

A neatly made bed dressed in Soft Cashmere eucalyptus lyocell sheets, sold on measured fiber specs rather than a thread count

9 min read

Best thread count for sheets: why 1,000 is worse than 400

Written by Derek FontaineResearch and Development Scientist at Sleep Research Institute of the Rockies · Last updated: August 2026 The best thread count for sheets is 300 to 50...

Best sheets for hot sleepers, breathable Cloud White eucalyptus sheet set with sheer-curtain daylight

11 min read

Best sheets for hot sleepers: 6 fabrics ranked by breathability

Written by Derek FontaineResearch and Development Scientist at Sleep Research Institute of the Rockies · Last updated: August 2026 The best sheets for hot sleepers are made fro...

Made bed with smooth eucalyptus lyocell pillowcases, the best pillowcase surface for hair

10 min read

Best pillowcase for hair: 5 fabrics ranked to stop breakage and frizz

Written by Robert Smith, MD, FAADBoard-Certified Dermatologist & Sleep Medicine Physician · Last updated: August 2026 The best pillowcase for hair is the one with the smoot...

Woman with healthy hair using a smooth Dreamey CloudThera pillowcase for protection

4 min read

How to stop the sun from destroying your hair

Reduce friction-driven hair damage with Dreamey CloudThera bedding. Our OEKO-TEX certified fabrics offer 56% less friction to protect against breakage.

A neatly made bed dressed in clean white eucalyptus lyocell sheets in a calm, minimal room with soft daylight

9 min read

How often should you wash your sheets? A dermatologist's guide

Written by Travis HollowaySenior Microbiologist at UCB · Last updated: August 2026 How often should you wash your sheets? For most people, the answer is once a week, every 7 da...

A dermatologist discusses underrated ingredients for healthy skin aging with a focus on Dreamey CloudThera bedding benefits

4 min read

5 underrated skincare ingredients for healthy skin aging

Discover 5 underrated skincare ingredients to support your skin barrier and healthy aging paired with the science of Dreamey CloudThera bedding.

A woman experiencing hormonal shifts during the luteal phase seeking relief with Dreamey CloudThera premium eucalyptus bedding.

4 min read

How to manage nightly skin and sleep issues during PMDD

Discover how hormonal shifts in PMDD lead to skin and sleep issues. Learn how Dreamey CloudThera bedding helps regulate temperature and moisture for relief.

A woman resting comfortably in a room outfitted with Dreamey CloudThera bedding, designed to manage menopause night sweats.

4 min read

How to manage perimenopause night sweats and sleep

Manage perimenopause night sweats with Dreamey CloudThera. Our moisture-wicking technology ensures a cooler, drier sleep. Try our 100-night risk-free trial today.