Orion Sleep System Review: Is This Dual-Zone Cooling Cover Worth It?

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If you sleep hot while your partner sleeps cold, separate blankets and fans may not be enough. Lowering the thermostat cools the entire bedroom, which can leave one person freezing while the other still struggles with night sweats.

The Orion Sleep System is a water-cooled mattress cover with dual-zone temperature control from 50°F to 113°F. Its bedside Control Tower circulates water through a thin cover that fits over your existing mattress, allowing each partner to choose their preferred sleep temperature. Orion also includes a Hot Flash mode for women experiencing night sweats during perimenopause and menopause.

Orion is a premium sleep cooling system from a newer brand. The Control Tower needs floor space beside the bed, and some owners have reported inaccurate sleep tracking through the app. This Orion Sleep System review looks at how well it cools, its main features, potential drawbacks, and how it compares with Eight Sleep.

Orion Sleep System Review at a Glance

You can buy Orion directly from its official website, where you’ll also find the latest seasonal sales and discounts.

Orion Sleep System Pros and Cons

Orion’s main strength is its temperature control. The main things to consider are how much space it takes up, how easy the controls are to use and how well the app works.

Most of the cons come down to whether the tower fits your bedroom and how much you care about sleep data.

How the Orion Sleep System Works to Cool and Heat Your Bed

The Orion Sleep System is a water-cooled mattress cover with two parts. A thin Smart Cover fits over your current mattress like a fitted sheet, and an attached hose connects it to a Control Tower that sits on the floor beside the bed, so there’s no new mattress or foam topper involved.

The tower cools or heats water anywhere from 50°F to 113°F and pumps it through tubing inside the cover. Your own fitted sheet goes on top, so the bed looks much the same. Most owners report that they can’t feel the water tubing, although the padded cover may make some mattresses feel slightly firmer.

Each half of the cover runs as its own temperature zone. Orion’s example is one partner sleeping at 73°F while the other sleeps at 82°F on the same mattress.

The system also follows a nightly schedule you set in the app. Core body temperature naturally drops as you fall asleep and rises again toward morning as part of your circadian rhythm. Orion’s default sleep schedule follows this pattern to help keep your bed at a comfortable temperature throughout the night.

1. Before bedThe cover starts cooling ahead of bedtime, so your bed is already at your preferred temperature when you climb in.
2. Early nightIt maintains a cool temperature to help you fall asleep comfortably.
3. Middle of the nightThe temperature drops to your coolest setting to help support deep sleep.
4. Toward morningThe cover gradually warms up as your wake-up time approaches, helping you wake up more comfortably.

Built-in sensors in the Orion Smart Cover track your sleep automatically, so you don’t need to wear or charge a separate device. If you’re comparing water-cooled mattress covers with cooling pads and toppers, our guide to the best water-cooled mattress pads walks you through more options.

Orion Sleep System Features Worth Knowing

Here’s a closer look at the Orion Sleep System’s main features, from adjustable bed temperature and dual-zone cooling to sleep tracking and other extras that can make your nights more comfortable.

Dual-Zone Temperature Control

Dual-zone control is the feature many couples buy Orion for. Each side gets its own temperature and schedule, and you can invite a partner or guest in the app so they control their half from their own phone. One person can run the cover cold all night while the other has it warming before the alarm, without either setting spilling over to the other side.

A 50°F to 113°F Temperature Range

Orion offers a wide temperature range from 50°F to 113°F, giving hot and cold sleepers plenty of control over their bed temperature.

The 50°F setting helps prevent heat from building up beneath you during the night, making it especially appealing to former Eight Sleep owners looking for stronger cooling. At the warmer end, 113°F lets you preheat your bed before climbing in on cold winter nights.

Automatic Sleep Schedules

The bed turns itself on before bedtime and off after you wake, with separate temperatures for bedtime, early night, late night and wake-up. Orion reports 26% less time awake, 19% more REM sleep, and 13% more deep sleep among participants with the poorest baseline sleep. These figures come from a before-and-after analysis of 2,394 nights across 171 users, with no control group. These are Orion’s own figures rather than independent results, so treat them as a guide to what’s possible.

Hot Flash Relief for Night Sweats

Hot Flash Relief, included with the paid Orion Intelligence subscription, lets you cool your side to 50°F with one tap in the app or a Home Screen widget. Choose a duration of 15 to 60 minutes, after which the bed returns to its normal temperature schedule. Some owners going through perimenopause and menopause say the cover has noticeably eased their night sweats and helped them sleep through the night.

Sleep Tracking and Orion Intelligence

Sensors woven into the cover read heart rate, breathing rate, HRV and movement without anything on your wrist. Orion Intelligence, the optional paid tier, turns that data into sleep stages, morning insights and recommendations in the app.

Quiet Mode and an Oak-Topped Tower

Quiet mode turns down the tower’s fan and pump sounds overnight, which light sleepers will appreciate. The 24-by-9-inch tower has an oak top with leather detailing, so it looks more like a small piece of bedroom furniture than the plastic hubs and docks rival systems use.

Optional At-Home Sleep Test

Orion also sells a one-night Sleep Disruption Test for anyone who wants to find their ideal sleep temperature first.

You wear a sensor patch for a night, then get a sleep report in the app along with a call from a Sleep Advisor, and the results set your starting temperatures if you go on to buy the full system.

Who Is the Orion Sleep System Best For?

Orion is best suited to people who struggle to sleep because they get too hot or too cold at night. These sleepers are likely to benefit the most from its temperature control.

Couples With Different Temperature Preferences

When one partner runs hot and sleeps with a fan pointed at the bed while the other piles on blankets, a shared thermostat setting leaves someone uncomfortable every night. Orion lets each of you sleep at your own temperature in the same bed, and many owners say ending that nightly thermostat fight is why they bought it.

Hot Sleepers Who Wake Up Sweating

Waking up damp and kicking off the sheets is one of the most common reasons people look at a water-cooled mattress cover. Orion keeps pulling heat away from your side after you fall asleep, which helps cut down on those overheated wake-ups. Hot summer nights are often what pushes people to buy one, although the cooling earns its keep year round in a warm bedroom.

Night Sweats and Hot Flashes During Menopause

Women in perimenopause and menopause often find that cooling sheets and fans can’t keep up with a hot flash in the middle of the night. Orion’s one-tap Hot Flash Relief and its 50°F low end give you a faster way to cool down without waking your partner. For more options, our guide to the best mattress pads for night sweats covers lower-cost ways to stay cool too.

Cold Sleepers Who Struggle to Warm Up

If you’re always the one reaching for an extra blanket, the heating side is worth as much as the cooling. You can warm up your side of the bed before bedtime while your partner keeps theirs cool. Owners often say getting into a warm bed on a cold night is one of their favorite things about it.

Anyone Looking for an Eight Sleep Alternative Without a Subscription

People who’ve owned an Eight Sleep or looked into buying one often choose Orion for its similar water-based cooling system, without having to pay a membership fee to use it. With Orion, temperature control and schedules work without any paid plan.

Sleep Trackers Who Don’t Want a Wearable

Athletes and biohackers who track HRV and recovery can get those numbers from the cover itself, with nothing to strap on at night. Full insights need Orion Intelligence, so factor that into the cost if sleep data is a priority.

Think Orion could help you sleep better? Check the available sizes and find the one that fits your mattress.

What Orion Sleep Owners Say About Comfort, Noise and the App

Owner reviews of the Orion Sleep System are especially positive about its cooling performance. Many say the cooling works as well as they’d hoped, while couples with different sleep temperature preferences appreciate being able to control each side of the bed without constantly adjusting the thermostat.

Comfort is another common highlight. Owners who’ve switched from older water-cooled mattress pads say they can’t feel the water tubes through Orion’s Smart Cover, addressing a common complaint with earlier cooling systems.

Noise gets mixed reviews, depending on how sensitive you are to sound. Some owners find the Control Tower much quieter than their previous cooling systems, while light sleepers occasionally notice a low hum. Quiet mode can help reduce the noise, and Orion’s 30-night trial gives you a chance to see how it sounds in your bedroom.

The app is where owners have more complaints. Some want more flexible temperature schedules and a fully automatic mode. Others report that the sleep tracking data, particularly bedtime and wake-up times, doesn’t always match their fitness wearables. Orion’s founders have responded publicly to these concerns and say improvements are planned. If you’re mainly buying Orion for heating and cooling, owners generally seem happy with the app’s temperature controls.

Privacy also comes up in positive reviews. Orion supports Apple Health and Health Connect integrations and its privacy policy states that biometric and sleep data is de-identified before being shared with researchers.

Orion Sleep App, Wi-Fi and Controls

Orion runs entirely through its app, so it’s worth checking how that fits your home and your sleep schedule before ordering.

Orion Needs Wi-Fi to Change Temperatures

Orion needs a reliable Wi-Fi and internet connection for temperature adjustments and schedules. If the connection drops, the tower can maintain its previous temperature, but you cannot change settings through the app until it reconnects.

No Bedside Buttons or Voice Control

There’s no remote and no buttons on the side of the bed, so every change happens on your phone. Owners coming from Eight Sleep say they miss tapping the bed to adjust it. Orion doesn’t list support for Google Home or Alexa either, so voice control isn’t an option for now.

Schedules for Shift Workers and Irregular Bedtimes

Orion’s schedules are built around a set bedtime and wake time, and some owners would like a true auto mode that adjusts on its own. If you work rotating shifts, you can still change each side’s temperature in the app whenever you get into bed, although you’ll be updating the schedule more often than someone who goes to bed at the same time each night.

Orion Sleep vs Eight Sleep, Chilipad, BedJet and Navien OptiSleep

Orion is most often compared with Eight Sleep, with Chilipad and BedJet coming up as the older names in bed cooling and Navien OptiSleep as a newer water-based option. Each handles temperature differently, and the right fit depends on how you sleep and what you’re willing to pay for each year.

Orion Sleep vs Eight Sleep Pod 6

Both are smart mattress covers that run water through a cover on your existing mattress, with two temperature zones and built-in sleep tracking. Orion reaches a colder 50°F at the low end compared with Eight Sleep’s 55°F, and it goes a few degrees warmer at the top as well.

The bigger difference is the subscription. Eight Sleep requires its paid Autopilot membership for the first year, while Orion’s temperature features work without one, which gives Orion a lower first-year cost. Eight Sleep has been around longer and offers a few extra features, including bedside tap controls and an optional adjustable base that can raise your head while you sleep, which may help some people who snore.

Orion Sleep vs Chilipad 2.0

Sleepme’s Chilipad 2.0 is also water-based, runs from 55°F to 115°F and has no subscription. It doesn’t track sleep, and a dual-zone setup uses two separate plastic docks rather than one tower. Couples who want app-free cooling with a physical remote may still like Chilipad, while Orion fits better when you want both zones run from one unit with tracking built in. Our Chilipad 2.0 review goes into more detail.

Orion Sleep vs BedJet 3

BedJet takes a different approach and blows warm or cool air under your sheets instead of circulating water. BedJet’s regulated air temperature ranges from 66°F to 109°F across its different modes. Its cooling performance depends on bedroom air temperature, while Orion actively chills water circulating through its mattress cover. BedJet doesn’t include sleep tracking, and it can work if you mainly want quick warmth or airflow.

Orion Sleep vs Navien OptiSleep All Season Pro

Navien OptiSleep comes from water heater manufacturer Navien and runs two zones from one hub, with no subscription. Its range runs from 64°F to 113°F, so Orion cools 14°F lower. Navien also requires both sides to use the same heating or cooling mode, while Orion lets one partner cool their side and the other heat theirs.

Navien’s SleepHub has a front panel display for control without your phone, and the system comes with washable cooling and warming covers plus a built-in UV hygiene cycle. Both brands offer a 30-night trial. Orion includes a 2-year warranty with an optional 3-year extension. Navien includes a 5-year limited warranty on the pad and 2 years on the SleepHub and other components, with optional extended coverage.

For couples who want deep cooling on one side and warmth on the other, without a required yearly plan, Orion covers the most ground of the five.

Orion Sleep Cost, Subscription and Value

Orion sits at the premium end of smart bed cooling systems, although it comes in below Eight Sleep once you factor in Eight Sleep’s required first-year membership. You can pay in full or spread the cost with monthly financing at 0% APR on qualifying orders, and the system may be HSA or FSA eligible.

Do You Need the Orion Intelligence Subscription?

You don’t need it to cool or heat your bed. Temperature control, schedules, automatic on and off, guest access, customer support and the warranty are all included with the hardware.

Some people assume Orion works like Eight Sleep and needs a membership to run, but heating and cooling keep working whether you subscribe or not. If you cancel Orion Intelligence, your temperature schedules and thermal wake-up continue working, but you lose Hot Flash Relief, sleep insights and personalized temperature recommendations.

Orion Intelligence costs $250 a year after the introductory free trial. Check the trial duration and renewal date during activation, as these may vary by offer. It adds sleep stage tracking, heart rate, movement and HRV data, personalized temperature recommendations, Hot Flash Relief and Home Screen widgets. Members also receive water purification tablets. It’s worth paying for if you like checking HRV and recovery each morning, and easy to skip if a comfortable bed is all you’re after.

Other Costs to Plan For

• Extended Protection. An optional $399 add-on that extends the 2-year warranty by another 3 years.
• Sleep Disruption Test. An optional one-night test that sets your starting temperatures.
• Water and purification tablets. The tower needs occasional distilled-water top-offs and two cleaning tablets every six to eight months. Orion Intelligence members receive the tablets as part of their subscription.

For couples who’ll use both zones every night, Orion’s value comes from replacing fans and thermostat compromises with one system that handles both sides.

Orion Sleep Setup, Maintenance, Returns and Warranty

Orion needs very little upkeep once it’s set up.

Setup Takes About 15 Minutes

Orion says setup takes under 15 minutes. You fit the cover over your mattress, connect the hoses, fill the tower with water and plug it into a single standard outlet, then set each side’s temperature in the app. Orion’s setup guide calls for distilled water, so it helps to have some ready before delivery day.

Before ordering, measure your mattress depth. Orion lists conflicting compatibility ranges of 10 to 16 inches and 10 to 18 inches on its website, so confirm fit with Orion if your mattress is deeper than 16 inches. The cover works on standard slatted or platform frames.

Day-to-Day Care

The cover is spot-clean only, but since your regular fitted sheet goes on top, you’ll wash that as usual. The tower needs occasional distilled-water top-offs and two cleaning tablets every six to eight months.

Shipping, the 30-Night Trial and Returns

Orders ship free and typically go out within a week, but delivery times can vary. You then get 30 nights to sleep on it, and if it isn’t right for you, Orion covers the return. Contact support within that window to start a return, and keep the cover and tower in good condition so the return goes smoothly.

The 2-Year Orion Warranty

The Control Tower and Smart Cover come with a 2-year limited warranty from the date of purchase, and Extended Protection adds another 3 years for 5 years of total coverage. Orion also offers 24/7 support from a human team.

Where to Buy the Orion Sleep System

The Orion Sleep System is sold through Orion’s official website, where you’ll get the full 30-night trial and the 2-year warranty. Buying direct also means any current sale applies automatically at checkout.

Pick your size at checkout and add Extended Protection or the Sleep Disruption Test if you want them.

Orion Sleep System FAQs

Is the Orion Sleep System Worth It? Our Final Verdict