Effects of a Supplement System on Objectively Measured and Perceived Sleep: A Randomized Controlled Study

Abstract

Objective: The aim of this study was to evaluate effects of a supplement system on objective and perceived sleep outcomes in a non-clinical adult sample.

Methods: Adults (55% female, mean age=51) Who reported being in good health and were screened for physical and lifestyle factors that could affect sleep participated in a controlled 12-week field study. During the 4-week baseline period, participants slept at home in their usual environment without use of a supplement. Following a 4-week baseline period, participants were randomly assigned to use either supplement or control for 4 weeks. Then they crossed over to use the other product (either supplement or control) for 4 weeks. The supplement period used Rebalance Health Anxiety System, a three-part supplement system containing multiple vitamins and dietary nutrients with enhanced absorption. Sleep was measured objectively, using a polysomnography-validated noncontact monitoring device, and by self-report each morning. Compared to the control supplement, controlling for baseline sleep, using Rebalance resulted in multiple objective sleep improvements including: falling asleep faster (18% difference; p=0.003), decreased number of nighttime awakenings (6% difference; p=0.044), fewer minutes awake after initial sleep onset (13% difference; p=0.001), smaller proportion of the night spent awake after initial sleep onset (p<0.001), improved sleep efficiency (p<0.001), and improved sleep maintenance (p<0.001). Daily questionnaire assessment did not show a significant increase in perceived sleep quality, but the perception of feeling more well-rested upon waking increased (p=0.043).

Conclusion: Compared to a control, the supplement system was associated with falling asleep faster, waking up less often, spending less time awake during the night, and better sleep efficiency and sleep maintenance. In addition to these objectively measured outcomes, participants reported feeling more well-rested in the mornings. This research indicates that the three-part supplement system can be a useful tool for supporting sleep.

Author(s): Aislinn B. Beam*, Sharon Danoff-Burg, Morgan A Weaver, Kiara C Carmon, Duvia Lara Ledesma and Holly M Rus

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