LED bulbs: what actually changed, and how to buy one now
Watts stopped meaning brightness. Lumens, kelvin and CRI are the three numbers to read instead.
Bedside lamps for a small bedroom: size, shade and switch
A small nightstand needs a small footprint and a switch you can find in the dark. Everything else is preference.
Star and aurora projectors: what they do well, and their limits
A projector is a going-to-sleep device rather than a night light. How to set one up so it helps.
Rechargeable lamps: run time, batteries and what the numbers mean
Quoted run times assume the lowest setting. How to work out what you will actually get.
Where to put a night light so it helps rather than wakes
A well-chosen light in the wrong place is still the wrong light. Placement, glare and cable routing.
Colour temperature: why 2200K and 5000K are not the same night
Kelvin is the number that decides whether a light helps you get back to sleep or wakes the whole room up.