1130 Use of a Mattress Designed to Help Sleepers Feel Cool Improves Objective and Perceived Sleep Quality

Abstract Introduction Previous research has shown that comfort, including comfort of the sleep surface, is essential to sleep quality. In addition to comfort, temperature regulation plays an important role in sleep quality. This study compared sleep on a mattress designed to help the sleeper feel cool to participants’ prior sleep on their original mattress. Methods Healthy adults (72% female; ages 24-73, mean age=42) who reported sleeping hot or night sweats, as well as difficulties with frequent awakenings or time spent awake at night, participated in a 10-week field study, using a pre-post intervention design. During the 4-week baseline period, participants used their regular mattress at home. During the 4-week intervention period, which occurred following a 2-week adjustment period, participants slept on a TEMPUR-LuxeBreeze Medium Hybrid mattress. Sleep was measured objectively using a PSG-validated, non-contact biomotion device, SleepScore Max, every night and by daily and pre-post self-report. Multilevel regression and paired t-tests were used to test for statistical significance. Results There were 1,331 nights of tracked sleep across 32 participants. Compared to baseline, objective sleep measurements showed increased time spent in bed (+8 minutes, p=.029) and improved SleepScore, an overall sleep quality metric (+1%, p=.044). Self-report measures revealed improvements in perceived coolness, comfort, support, pressure relief, sleep quality, amount of tossing and turning, satisfaction with sleep, and feeling well-rested in the morning (all ps.001). Conclusion Participants reported a more comfortable sleep, in numerous ways, when using the mattress being tested compared to baseline. In turn, they spent more time in bed, and objective measurements showed improved sleep quality. Support (if any) Mattress Firm INC.