I tried Joe Jonas and Sarah Jessica Parker's favorite pillow spray

This Works Deep Sleep Pillow Spray has become a celebrity favorite. Sarah Jessica Parker once shared an Instagram Story snap of her bedside table that included a bottle, and fans also include Millie Bobby Brown and Joe Jonas. Jonas told the Strategist he "highly recommends" the natural sleep aid, which features notes of lavender, chamomile and vetivert.

This Works’ CEO, Dr. Anna Persuad, calls her products "functional fragrance," drawing on neuroscience to develop blends that could help activate areas of the brain "associated with emotions, pleasure and calmness." While I’d covered the formula — and its posse of celebrity admirers — for years, I had to see (and sniff) it myself to truly believe the hype.

Now, having tested it out every night for at least a year, I can personally attest that the Deep Sleep formula is the only pillow spray I’ve ever gotten truly hooked on. I can’t sleep without it now.

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