Quick answer
You only need a flat sheet if you prefer an extra layer between you and your duvet or comforter, or if you sleep hot and want a washable barrier. Many people skip it and use a fitted sheet alone with a duvet cover.
Why the flat sheet debate exists
Flat sheets were originally designed to protect duvets and blankets from body oils and sweat, reducing how often you need to wash the bulky top layer. But modern duvet covers are machine-washable and many people find the flat sheet bunches up or adds unnecessary bed-making time.
The choice ultimately comes down to your bed-making habits, how often you wash your bedding, and whether you sleep hot or cold.
When a flat sheet makes sense
If you sleep with a heavy comforter or blanket that you don't wash weekly, a flat sheet acts as a removable, easy-to-wash barrier. It also helps if you tend to sleep warm and want to shed a layer without fully uncovering yourself.
For those who make their bed every morning, a flat sheet tucked in under the duvet gives a crisp, hotel-like finish.
When you can skip the flat sheet
If you use a duvet with a washable cover, the flat sheet becomes redundant. Many people find it slides around, adds laundry, and makes bed-making slower. If you sleep cold and prefer the direct warmth of a duvet, you likely won't miss the flat sheet.
Side sleepers who toss and turn also report that flat sheets tangle and pull, making sleep less comfortable.
Decision rules: flat sheet or not?
- You wash your duvet cover less than once a month: A flat sheet protects the duvet from body oils and sweat, letting you wash only the sheet weekly and the duvet cover less often.
- You sleep hot and want a breathable layer: Use a flat sheet alone on warm nights or under a thin duvet. It adds a lightweight barrier you can easily kick off.
- You prefer a streamlined bed and hate extra laundry: Skip the flat sheet. Use a fitted sheet plus a duvet with a washable cover. This cuts bed-making time and reduces laundry volume. If you skip the flat sheet, wash your duvet cover every 1-2 weeks to keep it fresh.
- You love a crisp, hotel-style made bed: Keep the flat sheet. Tuck it under the mattress and fold the duvet over the top for that layered look.
Product facts
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Comphy SoftSpa™ Flat Sheet: Used today in 97% of Forbes 5-Star spas & resorts, this fabric gets softer with each wash and is wrinkle free, stain resistant, and quick-drying. If you choose to use a flat sheet, the Comphy SoftSpa™ Flat Sheet offers a durable, low-maintenance layer that stays crisp and resists stains, reducing laundry effort.
Comphy SoftSpa™ Flat Sheet
Who should use a flat sheet?
Best for
- People who wash their duvet or comforter infrequently and want a washable barrier
- Sleepers who like a lightweight layer between them and the duvet, especially in warm weather
Not for
- Anyone who wants minimal laundry and a simple bed-making routine
- Side sleepers who find flat sheets tangle and disrupt sleep
