Short periods of sensory deprivation can be very useful as a stress-management tool, a successful treatment of addictive behaviors, and a potential adjunct therapy for generalized anxiety disorder. For most people, it relieves stress, improves your mood, and eases muscle tension and pain.
However, extended or forced sensory deprivation can have negative results such as extreme anxiety, bizarre thoughts, temporary senselessness, and depression. This only tends to occur if one were to spend upwards of 48 hours in a sensory deprivation experience, so most people do not have to be concerned.