The Remora System Parameters allow some tuning of the accelerometer to determine it's sensitivity. The accelerometer is used to wake the device from sleep. Changing the sensitivity can make it resistant to small movements.
The default settings are shown below. These are sensitive to movement and will wake the device with small movements.
To reduce the sensitivity, try these settings. These are found in the "Heavy Jostle" parameter templates. These are less sensitive to small movements.
If you choose to alter the settings beyond these 2 suggestions, please test thoroughly to ensure you do not disable accelerometer wake-ups completely.