Cooling Technology
Tones of Cool™
COOL. THE SECOND YOU TOUCH IT.
Tones of Cool ™ gives an immediate cool-to-the-touch sensation so your bed feels cool from the moment you get in.
Powered by Tones of Cool ™
Outlast ®
YOUR TEMPERATURE CHANGES. YOUR BEDDING RESPONDS.
Outlast® Technology responds to changes in your body temperate, absorbing, storing and releasing heat for a deeper more comfortable sleep
Powered by Oulast®Technology
Cool, your way
Instant cool-to-the-touch or responsive temperature regulation
Soft, Still.
Cooling technology without sacrificing the Sunday Citizen softness
OEKO-TEX® certified
Certified to OEKO-TEX® standards for product safety
Easy Care
Machine washable for simple, everyday care
FAQ
What’s The Difference Between Tones Of Cool™ And Outlast® Technology?
Both technologies are designed for hot sleepers. They just solve the problem differently.
Tones of Cool™ is what you FEEL.
An instant cool-to-the-touch sensation the moment you get into bed.
Outlast® is what it DOES.
Responsive technology that absorbs, stores and releases heat as your temperature changes through the night.
Which Cooling Technology Is Right For Me?
Choose Tones of Cool™ if you love the feeling of cool sheets and bedding as soon as you get into bed.
Choose Outlast® Technology if you tend to overheat or wake up hot during the night and want continuous temperature regulation while you sleep.
How Is The Cooling Collection Different From Other Sunday Citizen Bedding?
Our Cooling Collection offers the same signature softness and cozy comfort Sunday Citizen is known for, now enhanced with innovative cooling technologies designed specifically for hot sleepers.
Will It Actually Feel Cold?
Not always, and that's the point.
Tones of Cool™ feels cool to the touch.
Outlast® Technology responds to your temperature throughout the night.
Both are designed to help you sleep more comfortably.
What Does “Nasa-Developed Technology” Mean?
Outlast® Technology was originally developed for NASA to help manage temperature changes in space. Today, it helps absorb, store, and release heat for more balanced comfort throughout the night.