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Orders are prepared in 1–3 business days and arrive 3–7 business days after they ship. Alaska, Hawaii, Puerto Rico, U.S. territories and APO/FPO/DPO addresses can take longer. You get a tracking number by email as soon as your order ships.
Free returns within 30 days of delivery: we email you a prepaid return label, no reason needed. Items must be unopened, with the manufacturer or tamper-evident seal intact, in their original packaging. Opened, used or partially consumed vitamins, minerals and supplements, items with broken or missing seals, and gift cards can't be returned. Damaged, defective, incorrect or expired items are always covered. Refunds go back to your original payment method within 10 business days of approval.
If you have a question about an item, its label or your order, email sales@naturalvitaminsonline.com with the product name or order number. We answer every message by email and reply within 1 business day (Monday to Friday, Eastern Time).
Talk to your doctor or pharmacist before starting a supplement, especially if you're pregnant or nursing, take medication, or have a medical condition.
†These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.
Talk to your doctor or pharmacist before starting a supplement, especially if you're pregnant or nursing, take medication, or have a medical condition.
LC-dolida Sleep Tracker Mask is a sleep mask designed to track sleep timing, sleep states, and changes in brain activity in a companion app, with Bluetooth audio for sleep sounds.
For people who want more than audio while they rest, this mask pairs eye coverage with sleep tracking. The companion app brings sleep timing and activity views together, while the mask can also play sounds from the app. Its contoured eye cups are designed for light blocking without pressing directly against the eyes, making it suited to nighttime sleep, naps, and travel.
The LC-dolida Sleep Tracker Mask tracks when you fall asleep, your sleep states, and changes in brain activity through the companion app. It presents activity changes from awake to falling asleep and across the night as a visual view of your sleep experience. In the app, you can review the information together and follow your personal sleep patterns over time.
Yes, the LC-dolida Sleep Tracker Mask uses Bluetooth audio to play white noise and relaxing sleep sounds through the companion app. An internet connection is required for the app’s sleep sounds. The audio feature and tracking views serve different purposes: one provides listening options, while the other helps you review sleep information.
The LC-dolida Sleep Tracker Mask has contoured 3D eye cups that block light while leaving space around the eyes. This shape helps reduce direct pressure, including during sleep, naps, or travel. The mask combines this eye coverage with its tracking and Bluetooth audio features.
The LC-dolida Sleep Tracker Mask is suited to people who want to review sleep timing and brain activity changes while using a light-blocking mask with app-based audio. It is designed for sleep, naps, and travel, with eye cups that leave space around the eyes.
Q: What does the LC-dolida Sleep Tracker Mask track?
A: The LC-dolida Sleep Tracker Mask tracks when you fall asleep, your sleep states, and changes in brain activity through its companion app.
Q: Does the LC-dolida Sleep Tracker Mask play sleep sounds?
A: Yes. The LC-dolida Sleep Tracker Mask plays white noise and relaxing sleep sounds through its companion app using Bluetooth audio; an internet connection is required for app sleep sounds.
Free standard shipping on every order to U.S. addresses, with no minimum. Orders are prepared in 1–3 business days and arrive 3–7 business days after they ship. Alaska, Hawaii, Puerto Rico, U.S. territories and APO/FPO/DPO addresses can take longer. You get a tracking number by email as soon as your order ships. See shipping details.
Free returns within 30 days of delivery. Free returns within 30 days of delivery: we email you a prepaid return label, no reason needed. Items must be unopened, with the manufacturer or tamper-evident seal intact, in their original packaging. Opened, used or partially consumed vitamins, minerals and supplements, items with broken or missing seals, and gift cards can't be returned. Damaged, defective, incorrect or expired items are always covered. Refunds go back to your original payment method within 10 business days of approval. See returns & refunds.
Damaged, defective, incorrect or expired item? Email your order number, a photo and the lot/expiration details to sales@naturalvitaminsonline.com and we will arrange a replacement or refund; this is always covered. Please report visible shipping damage within 7 days of delivery.
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