Journal

Shafts of light falling through mist across a hillside of spruce, widescreen crop

What is the difference between deep sleep and REM sleep

November 12, 2026
4 minutes to read
Ciridian Longevity Sleep System

Searching for Circadian mattress reviews?

October 20, 2026
5 minutes to read
The bedside control beside the Sleep System at night, the spring base glowing below the sleep surface

Sleep stages explained: light, deep, REM and wakefulness

October 15, 2026
5 minutes to read
A sleeper on their back on the Sleep System, seen along the length of the bed

Snoring and sleep position: the connection

October 13, 2026
5 minutes to read
A sleeper asleep under white bedding with the bedside control lit beside them

Best bed for side sleepers: pressure at the hip and shoulder

October 5, 2026
5 minutes to read

Sleep and longevity: why the surface you sleep on matters

October 5, 2026
5 minutes to read

Bed for back ache: what actually helps at night

October 2, 2026
3 minutes to read
A sleeper lying on their back in low lamplight, head resting on a pillow

How to improve sleep: environment, surface and pressure

October 1, 2026
5 minutes to read
Let's make your bed.
Book Appointment
Join the inner circle
Receive personalized email updates, launch annoucements, and exclusive access.
Join Here
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Scientific Advisory BoardLocationsBrochureJournal
Product VideoPressTerms & ConditionsPrivacy Policy
214-379-3011experience@ciridian.com4900 Arapaho Rd.
Ste 300
Addison, TX 75001

© 2026 CiridianTM .  
All Rights Reserved.

FacebookInstagramLinkedIn