You can really feel the strong vibration of the massaging effect when placed on the massage mode.I have had this bed for many years and when my body aches all over from exercises or tension from a long work day
I turn on the massage mode for 20 min and the strong vibration on my back removes all muscle spasms that I get and actually puts me to sleep The cost was minimal compared the years of usage and comfort that I have with this bed I have this bed for at least 10 years
