Eight Sleep is launching the Pod 5, the fifth generation of its expensive smart sleeping system. It packs two main upgrades: a temperature-controlled blanket and speakers that can play “soothing ...

Getting a good night’s sleep can feel great, and a neurologist specializing in sleep wants people to know that routinely sleeping well can also bolster one’s immune system and mental health.

Eight Sleep is launching the Pod 5, the fifth generation of its expensive smart sleeping system. It packs two main upgrades: a temperature-controlled blanket and speakers that can play “soothing ...