You're reading: Wall Street Journal: Can better light bulbs improve your sleep?

A raw, cold-pressed juice can easily set you back $12. A queen-size organic mattress from Avocado costs $1,399. If we’re willing to pay those prices in the name of wellness, why not $8 for lightbulbs that can potentially improve our sleep cycles, increase focus and boost our moods? Such innovative illumination hasn’t quite caught on yet.

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