CircadiaOS is software-only sleep optimization. No mattress pod, no proprietary sensor, no new hardware. It connects the wearable and smart thermostat you already own, builds a personalized overnight temperature schedule from your biometrics, and runs your thermostat through it automatically every night. Most premium sleep tech in this category has been hardware-first: thousand-dollar mattress pods, dedicated sensors, custom firmware. We took the opposite bet.
Hey PH! Dominic here, CEO of CircadiaOS, launching today with my cofounders Jackson
(COO) and Armani (CTO).
Quick story on why we built this. My mom went through menopause and her sleep fell apart.
Night sweats, waking up overheated, hours awake at 3am. She tried everything. Cooling sheets,
fans, the works. Nothing held up because the temperature she needed was not a single number, it
was a moving target across the night that her body could not communicate to her thermostat.
Meanwhile she already had an Apple Watch on her wrist tracking everything in real time, and a
smart thermostat on the wall doing nothing with that information. Two devices, sitting two feet
apart, with no relationship to each other. That gap is the whole product.
CircadiaOS reads her biometrics every morning, figures out what worked the night before, and
runs her thermostat the next night accordingly. After about two weeks of calibration the system
locks onto her specific physiology and the schedule starts compounding. She sleeps through the
night now.
The bigger bet: every premium sleep tech company has tried to solve this with proprietary
hardware. We think the hardware is already in the room. The product is the intelligence layer that
makes it work together.
Would love your feedback, your upvotes, and your honest roasts. We are live in comments all
day.
About CircadiaOS on Product Hunt
“Sleep optimization, minus the $3,000 mattress pod”
CircadiaOS launched on Product Hunt on May 27th, 2026 and earned 94 upvotes and 7 comments, placing #13 on the daily leaderboard. CircadiaOS is software-only sleep optimization. No mattress pod, no proprietary sensor, no new hardware. It connects the wearable and smart thermostat you already own, builds a personalized overnight temperature schedule from your biometrics, and runs your thermostat through it automatically every night. Most premium sleep tech in this category has been hardware-first: thousand-dollar mattress pods, dedicated sensors, custom firmware. We took the opposite bet.
On the analytics side, CircadiaOS competes within Health & Fitness, Wearables and Tech — topics that collectively have 889.6k followers on Product Hunt. The dashboard above tracks how CircadiaOS performed against the three products that launched closest to it on the same day.
Who hunted CircadiaOS?
CircadiaOS was hunted by Dominic Mangino. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of CircadiaOS including community comment highlights and product details, visit the product overview.
Dominic Mangino