Theta — the wind-down rhythm
Theta activity sits in the roughly 4–8 Hz band — the slow, drifting rhythm your mind moves through as it lets go: the last quiet minutes before sleep, deep meditation, that unhurried daydreaming state where thoughts loosen and settle. At 6 Hz, Calmfield's lowest setting is tuned to the heart of this range.
It's the mode made for the end of the day. Set it on your nightstand an hour before bed and let the room take on a slower, quieter pulse — no sound, no light, just a calm field to unwind into. Research into theta oscillations continues to explore their role in relaxation, memory and restorative rest.
Reference: theta-band EEG research, ScienceDirect (S0028393213002820)