where's the best place to put the ecobee smart sensor in my bedroom for sleep comfort?

For accurate sleep temperature, placement is key. You'll also want to assign it only to your Sleep comfort setting.

Here's how to set it up:

1. Placement: Mount it about four feet off the ground, facing the main part of the room. Avoid spots near vents, fans, exterior walls, windows, or direct sunlight.
2. Pairing: When you pair the sensor, the thermostat will ask which Comfort Settings (Home, Away, Sleep) it should participate in.
3. Selection: Choose only 'Sleep' for your bedroom sensor. This ensures it only controls the temperature at night, not during the day when you're elsewhere.

For optimal performance, note these specs:

• For best temperature readings: 4 ft (1.2 m) high.
• For 'pet immunity' to avoid false occupancy: 6.5 ft (2 m) high.
• Occupancy viewing distance is 20 feet. It detects continued presence, not just motion.