The First Sleep System That Senses Your Body's Heat And Responds In Seconds, Not Hours
Terra² pairs a body-sensing bracelet with an under-sheet temperature pad that reads your thermal signals and adjusts automatically through the night. Stop locking yourself into one static temperature and start sleeping the way your body actually needs to.
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We're launching soon. Get an exclusive discount by signing up now!
Senses Heat At Your Body, Not Your Room
The bracelet reads multi-dimensional bioimpedance signals to detect your body's early response to overheating before you consciously feel too warm. Terra responds to thermal discomfort before it becomes a sleep disruption, helping protect deep sleep, REM, and overall sleep continuity.
Responds In Seconds, Not Minutes
Terra reads the bracelet and triggers the pad within seconds, using pre-chilled water stored in the hub. Fast response turns a potential wake-up into a minor event that never fully disturbs your sleep.
Follows Your Body's Natural Temperature Curve
Terra is built to follow the overnight shifts your body already makes: cooler as you fall asleep, slightly cooler through deep sleep, stable through REM, and gently warmer toward wake time. Instead of forcing your body to adapt to one number, Terra supports how sleep actually works.
Learns Your Nights And Gets Smarter Over Time
Terra builds an individual profile of your thermal signals and adjusts thresholds and set points based on your body, your bedding, your room, and your nightly patterns. Every night of data makes the next night better.
Get an exclusive discount
We're launching soon. Get an exclusive discount by signing up now!
From Setup To Better Sleep In 3 Simple Steps
Step 1
Download the Amira Terra app, sign in, and pair the Hub and Bracelet.
Step 2
Connect the Pad to the Hub, fill the tank with about 1 liter of water, and place the Pad under the sheet on your side of the bed.
Step 3
Set your sleep schedule and starting temperature in the app, wear the Bracelet to bed, and let Terra run automatically through the night.
Designed For Anyone Whose Sleep Is Broken By Temperature
Sleep Struggler?
Built for insomniacs, shift workers, new parents, and anyone who feels the daytime cost of bad sleep.
Looking For A Drug-Free Fix?
A non-invasive alternative for sleeping-pill avoiders, melatonin users, and CBT-I patients.
Hot Sleeper, Cold Partner?
Only your side of the bed changes. Theirs stays exactly as they like it.
Tech Specs
- System Weight: 10 lb
- Hub: 9 lb; 7" tall; 1000 mL tank; 12V power
- Pad: 52 x 80.5 cm (20.5 x 31.7 in); flexible TPU Shore 95A; 14 x 9 island bladder
- Bracelet: 2 oz; Bluetooth Low Energy; multi-dimensional bioimpedance sensing; ~1 week battery life; USB-C charging; IPX4 splash resistance
- Temperature Range: 60°F to 80°F
- Response Time: Within 5 seconds of detection
- Noise Level: Under 35 dBA at 1 m
- Cooling Performance: Cools 870 mL from 30°C to 15°C in 30 minutes at 25°C ambient
- App: iOS and Android; supports one-time, constant, and scheduled modes
- Firmware: Over-the-air updates via Bluetooth with automatic rollback
Get an exclusive discount
We're launching soon. Get an exclusive discount by signing up now!
The First Sleep System That Senses Your Body's Heat And Responds In Seconds, Not Hours
Terra² pairs a body-sensing bracelet with an under-sheet temperature pad that reads your thermal signals and adjusts automatically through the night. Stop locking yourself into one static temperature and start sleeping the way your body actually needs to.
Get an exclusive discount
We're launching soon. Get an exclusive discount by signing up now!
Senses Heat At Your Body, Not Your Room
The bracelet reads multi-dimensional bioimpedance signals to detect your body's early response to overheating before you consciously feel too warm. Terra responds to thermal discomfort before it becomes a sleep disruption, helping protect deep sleep, REM, and overall sleep continuity.
Responds In Seconds, Not Minutes
Terra reads the bracelet and triggers the pad within seconds, using pre-chilled water stored in the hub. Fast response turns a potential wake-up into a minor event that never fully disturbs your sleep.
Follows Your Body's Natural Temperature Curve
Terra is built to follow the overnight shifts your body already makes: cooler as you fall asleep, slightly cooler through deep sleep, stable through REM, and gently warmer toward wake time. Instead of forcing your body to adapt to one number, Terra supports how sleep actually works.
Learns Your Nights And Gets Smarter Over Time
Terra builds an individual profile of your thermal signals and adjusts thresholds and set points based on your body, your bedding, your room, and your nightly patterns. Every night of data makes the next night better.
Get an exclusive discount
We're launching soon. Get an exclusive discount by signing up now!
From Setup To Better Sleep In 3 Simple Steps
Step 1
Download the Amira Terra app, sign in, and pair the Hub and Bracelet.
Step 2
Connect the Pad to the Hub, fill the tank with about 1 liter of water, and place the Pad under the sheet on your side of the bed.
Step 3
Set your sleep schedule and starting temperature in the app, wear the Bracelet to bed, and let Terra run automatically through the night.
Designed For Anyone Whose Sleep Is Broken By Temperature
Sleep Struggler?
Built for insomniacs, shift workers, new parents, and anyone who feels the daytime cost of bad sleep.
Looking For A Drug-Free Fix?
A non-invasive alternative for sleeping-pill avoiders, melatonin users, and CBT-I patients.
Hot Sleeper, Cold Partner?
Only your side of the bed changes. Theirs stays exactly as they like it.
Tech Specs
- System Weight: 10 lb
- Hub: 9 lb; 7" tall; 1000 mL tank; 12V power
- Pad: 52 x 80.5 cm (20.5 x 31.7 in); flexible TPU Shore 95A; 14 x 9 island bladder
- Bracelet: 2 oz; Bluetooth Low Energy; multi-dimensional bioimpedance sensing; ~1 week battery life; USB-C charging; IPX4 splash resistance
- Temperature Range: 60°F to 80°F
- Response Time: Within 5 seconds of detection
- Noise Level: Under 35 dBA at 1 m
- Cooling Performance: Cools 870 mL from 30°C to 15°C in 30 minutes at 25°C ambient
- App: iOS and Android; supports one-time, constant, and scheduled modes
- Firmware: Over-the-air updates via Bluetooth with automatic rollback
Get an exclusive discount
We're launching soon. Get an exclusive discount by signing up now!