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Sleep Nighttime Powder Calm and Relaxation Support Melatonin, Magnesium, L-Theanine and L-Glycine Dairy, Soy, Gluten Free 6 Ounce

Prices as of September 23, 2026, as listed by each retailer — verify the current price on the retailer's site before purchase.

Price history tracked at Macy's price tracker

14-day low
$17.59
Sep 13 · Macy's
Best price
$17.59
−0% vs high
14-day high
$17.59
All stores
$18$18$18
Sep 13Sep 23
  • Macy's
Lowest in 14 days: $17.59 at Macy's. Highest: $17.59. Current best is 0% below the 14-day high.

What buyers say

AI summary · 100 reviews

A well-regarded sleep aid that helps many fall asleep faster and stay asleep longer, with minimal morning grogginess. Some buyers report digestive issues and a chalky texture, but these are a minority concern.

Liked

  • Effective sleep support
  • No next-day grogginess
  • Easy to mix with juice

Complaints

  • Chalky or gritty texture
  • Unpleasant taste in water
  • Digestive upset

Generated by AI from real customer reviews at Macy's — may miss nuance. Summarized Sep 2026.

About this product

Youtheory Sleep Nighttime Powder is a dietary supplement formulated to support calmness and improve sleep quality. It contains melatonin, magnesium, L-theanine, and L-glycine, ingredients intended to help users fall asleep more quickly and enjoy a more restorative night's rest. The powder is designed to be taken at bedtime and is free from dairy, soy, and gluten. Manufactured in the USA at GMP-certified facilities, it emphasizes purity, potency, and traceability in every batch.

  • Contains melatonin and magnesium
  • Dairy-free, soy-free, gluten-free
  • Made in USA
  • Supports falling asleep faster
  • GMP-certified manufacturing

Based on 100 reviews at Macy's

Read all 100 reviews on Macy's

AskPrice does not host review text. We aggregate the public rating from the retailer and link to the source for full reviews.

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Sleep Nighttime Powder Calm and Relaxation — Price History