Yes, there have been studies and research supporting the use of massage for improving sleep. For example, a study published in the Journal of Clinical Psychiatry found that massage therapy significantly improved sleep quality in individuals with depression. Another study published in the Journal of Alternative and Complementary Medicine showed that massage therapy reduced insomnia and improved sleep quality in postmenopausal women. Additionally, a systematic review published in the Journal of Evidence-Based Integrative Medicine indicated that massage therapy had positive effects on sleep quality across various populations. These studies provide evidence for the efficacy of massage in promoting better sleep and support its use at Tattva Wellness Spa.