What would you do with more REM?
5 nights. $10. Free shipping.
Try Defined Sleep for five nights and see what more REM sleep does for your mornings. No subscription, no obligation.
Start my 5-night trial · $10Regularly $19. Code REM10 is applied automatically. Ships free.
What you're getting
Five nights of Defined Sleep, enough to see what a difference more deep and REM sleep makes.
Two softgels a night
Take them with water about an hour before bed. Take it five nights in a row if you can.
No melatonin, no sedatives
Designed to support deep and REM sleep, not to knock you out.
Studied in a clinical trial
A peer-reviewed, placebo-controlled trial with sleep stages measured nightly on a wearable. Read the study
Full ingredients and how it works are on the product page. REM10 takes $9 off the 5-Night Trial, once per customer, for customers who have not had a trial before. Ends December 31, 2026. It cannot be combined with other offers and does not apply to subscriptions. Free or discounted trial purchases are ineligible for the money-back guarantee.