Sleep Journal

How to sleep on a plane: a simple packing checklist

Light, noise and an awkward seat are what keep most people awake on flights. This short checklist covers all three.

White, pink and brown noise: what's the difference?

All three are steady background sounds. The difference is how much of the sound sits in the high or low pitches. Here's how to choose.

How a sunrise alarm works, and who it's for

A sunrise alarm swaps the buzzer for light that builds slowly before your alarm time. Here's how it works and how to set one up.