I like the idea of eight sleep and their design, but it seems insanely overpriced. 

$3k for a mattress cover? And you also have to pay a monthly subscription to use the app?

𝓵𝓲𝓿𝓲𝓷𝓰 𝓽𝓱𝓮 𝓮𝓷𝓭𝓵𝓮𝓼𝓼 𝓼𝓾𝓶𝓶𝓮𝓻 • building @buoy 🛟 • pfista.com

Had one die at exactly the 1 year mark because of biofilm growth in the pipes, but the support is great, replaced the entire unit, and that’s what you’re paying for. Not sure what the lifetime replacement cap will be, but hopefully they’re getting more reliable. I liked the prior “cover grid” design better.