Cool Your Core. Warm Your Feet
The four-zone system lets you cool your upper body while keeping your feet warm. Different areas of your body get the temperatures they need for sleep.
Four Zones.
Tailored Temperatures
for Better Sleep.
OVAL Adapt, the 4-zone intelligent temperature-controlled mattress cover & hub
- 100-night trial100-night risk-free trial
- One-year price protection
- Over $1000 in benefits for our 100 founding members
- No subscription for core functions
- 100-night risk-free trial
- One-year price protection
- Over $1000 in benefits for our 100 founding members
- No subscription for core functions
Perfect Temperatures for
Everywhere and Every Night
7.5 min
shorter sleep onset¹
Faster sleep onset
OVAL Adapt sets a temperature difference between your upper and lower body, helping you release heat as you settle into sleep. This targeted temperature difference can help you fall asleep faster.
35 %
more deep sleep²
Temperature that adapts all night
OVAL Adapt automatically adjusts temperatures for your upper and lower body as you move through the different sleep stages. These adjustments are designed to support more deep sleep.
Fall asleep faster.
Sleep deeper.
Personalized comfort, all night.
Why Four Zones Mean Better Sleep
Most sleep systems give each sleeper just one temperature. But your upper body often needs something different from your lower body.
Learn more
Temperature isn't just a preference. It's rooted in your body's physiology.
DPG theory³ suggests that the temperature difference between your core and extremities helps support your natural transition into sleep.
Better Sleep for Every Kind of SleeperBuilt for the way real nights are never the same
Different bodies. Different nights. One system that adapts.
Four-zone temperature control adapts to your body's changing needs, from falling asleep to throughout the night.
Cool Where You Need It. Warm Where It Matters.
Four-zone temperature control adapts to your body's changing needs, from falling asleep to throughout the night.
What is Adapt
The Layer that
transforms your sleep
Turns your bed into a temperature-controlled sleep environment
OVAL Intelligence
Analyzes your day, personalizes your recovery at night.
Backed by Science
Rachel Salas, MD, MEd
Professor in the Department of Neurology at Johns Hopkins Medicine
Sleep neurologist at the Johns Hopkins Center for Sleep and Wellness
Aric A. Prather, PhD
Professor, Psychiatry and Behavioral Sciences, School of Medicine, UCSF
Author of The Sleep Prescription: 7 Days to Unlocking Your Best Rest
Hear from Real Users
Join Now to Unlock
$1000+ in Benefits
Available exclusively to our 100 founding members.
2-year Plus Membership
Original price $398FREE
Extended OVAL Care
Original price $599FREE
Wearable Health Tracker
Original price $99FREE
Frequently Asked Questions
Traditional dual-zone systems only allow the left and right sides of the bed to be adjusted separately. OVAL Adapt goes further by dividing the sleep surface into four zones, allowing each sleeper to control their own side while also adjusting the upper and lower body areas independently.
This means you can keep the upper body cooler while adding warmth around the legs and feet, creating a more detailed and personalized temperature experience for one or two sleepers.
16+8 Mode is OVAL’s all-day adaptive health and sleep management approach. If users use a compatible health device such as Fitbit Air, they can authorize and sync relevant data to the OVAL App through Google Health or Apple Health, allowing the OVAL system to understand their activity, exercise, recovery, and daily routines during approximately 16 waking hours.
These daytime insights help the system assess sleep readiness, provide bedtime suggestions, and prepare temperature strategies such as pre-cooling, pre-warming, and initial temperature settings. During approximately 8 sleeping hours, OVAL uses nighttime sleep data to support adaptive temperature adjustment. Nighttime data also feeds back into the next day’s insights, creating a continuous 24-hour loop of state understanding and adaptive intervention.
Yes. OVAL Adapt works with your existing mattress, so there’s no need to replace it.
The OVAL Adapt Layer comes in queen and king sizes and fits standard mattresses 9.5–15.7 inches (24–40 cm) thick.
Setup is designed for home use and does not require professional installation.
OVAL Adapt’s core features work without a subscription. Temperature control, ongoing temperature adjustments throughout the night, and basic sleep tracking are all included with the system, with no recurring subscription required. Advanced features and other value-added services are optional paid offerings that users can subscribe to as needed.
OVAL Adapt can still maintain basic temperature control without an internet connection. You can adjust the temperature using the physical buttons on both sides of the OVAL Adapt Layer.
Features such as App temperature control, sleep data, sleep-quality reports, device status, indicator light status, and maintenance reminders require an active internet connection.
The OVAL Adapt system includes a two-year limited warranty from the date of delivery.
Try OVAL Adapt with our 100-night trial. If you’re not satisfied, contact us within 100 days of delivery to request a return.