Researchers tested a smart mattress that automatically adjusts temperature based on sleep stages, comparing it to constant temperature and no temperature control. The adaptive system lowered temperature during REM sleep and raised it during non-REM sleep. Results from 25 participants showed significant improvements: 27 minutes more total sleep time, higher sleep efficiency (87.3% vs 82.8%), and faster REM sleep onset. The technology represents a promising non-invasive approach to optimize restorative sleep.
