Sleep
You can't really buy your way into a good night's sleep, which has never stopped anyone trying.
This page collects the things that help at either end of the night: getting to sleep, staying there, and waking up in the dark without a jolt. Where owners disagree about whether something's worth the money, the write-up says so.

Is the Expensive Sunrise Alarm Clock Better?
Dark mornings make every alarm crueler. The fake-dawn fix comes cheap or premium, and owners who've paid both prices don't agree on which to buy.
