** "The Rise of Smart Sleep Gadgets: A $4,700 Mattress Pad and More" "Several smart sleep gadgets have emerged on the market, promising improved shut-eye through technology. The Eight Sleep Pod 4 Ultra, a mattress pad that costs $4,700 and requires a subscription, has been reviewed by Vergecast's Victoria Song. Other options include the Oura Ring 4 and Ozlo Sleepbuds. These devices often come with high price tags, but some users find them worth the investment for better sleep quality." ** Source: https://www.theverge.com/2024/11/12/24294517/best-sleep-gadgets-eight-sleep-oura-spotify-ai-vergecast