| What it does | The thermostat schedule that learns from your sleep
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| Stage | Not given
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| Founded | Not given
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| Based in | US
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| Pricing model | Freemium
| Paid
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| Pricing | Free: starting temperature schedule, optional wearable connection, nightly sleep data and trends, no thermostat control. Premium (monthly): $12.99/month with automatic thermostat control, four-phase schedule, 14-night starting period, one-variable-at-a-time adjustment from wearable data, 14-day free
| $27 USD one-time lifetime access. Pro tier: $67 USD one-time lifetime access. 30-day money-back guarantee.
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| Key features | - Four-phase overnight temperature schedule (pre-sleep, early night, late night, pre-wake)
- One-variable-at-a-time personalization held for 7 to 14 nights per change
- Wearable integration: Apple Watch, Oura Ring, Whoop, Garmin, Fitbit
- Thermostat compatibility with Nest, ecobee, Honeywell Home and 20+ brands
- 14-night starting period and reference point on Premium
- User-set temperature floor and ceiling, never below 63°F
- Why This Curve display showing where each setpoint came from and data behind it
- Best vs Worst nights comparison showing highest and lowest scoring nights
- Manual override capability with automatic resumption next night
- Referral program earning free months of Premium for every three friends who join
| - State check-in to identify current nervous system state
- 23 state-matched reset routines
- Breathing, movement, grounding, sensory and cognitive reset practices
- Before and after regulation score tracking
- Quick Mode for faster sessions after 5 uses
- Sol AI assistant for talking through your state
- Pro section with 21 Pro exercises for daily training
- 16-question starting assessment setup
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| What makes it different | - No new hardware required—works with your existing smart thermostat and wearable
- Software-first approach running sleep algorithms on your thermostat rather than requiring specialized cooling beds
- Personalization through one-change-at-a-time adjustments graded against your own sleep data
- Complete transparency showing where every setpoint comes from and how much data supports it
| - State-matched practices instead of giving everyone the same exercise
- One-time $27 payment with no subscription model
- 7-minute sessions with Quick Mode down to 3-5 minutes
- Built on 61 peer-reviewed studies
- 30-day money-back guarantee with no questions
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 13 ● no change since last check | 31 ● no change since last check |
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| Trust Flow (Majestic) | 4 | 2 |
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| Citation Flow (Majestic) | 24 | 8 |
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| Referring domains (Majestic) | 47 | 5 |
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CircadiaOS
NerveWindow