Premium Sleep Mask with Cooling Effect Kalsten
Restful Sleep with the Kalsten Premium Sleep Mask
Discover the Kalsten Premium Sleep Mask with an innovative cooling effect that helps you find a relaxing and restorative night's sleep. This high-quality sleep mask is ideal for travel, naps, and at home.
- Comfortable Design: The mask is made from soft, breathable material and gently conforms to your face.
- Cooling Effect: The special technology provides a pleasant coolness that reduces stress and fatigue.
- Adjustable Straps: Individually adjustable straps ensure a perfect fit and maximum comfort.
- Ideal Light Blocking: Blocks disruptive light for deep and uninterrupted sleep.
- Easy Care: The sleep mask is machine washable and stays in top condition even after multiple washes.
Enjoy relaxing nights with the innovative Kalsten sleep mask – for better sleep quality and a more restful everyday life!
Free standard shipping on all orders. No minimum purchase.
- Ships to: United States
- Processing: 1–4 business days (Mon–Fri)
- Transit: 5–10 business days
- Total delivery time: 6–14 business days
- Order cut-off: 5:00 PM PST
You will receive a tracking number by email once your order ships. Please allow up to 48 hours for tracking to update.
See our full Shipping Policy.
You have 14 days from delivery to request a return.
- Email support@open.shop with your order number to start a return.
- Items must be unused, complete, and in their original packaging.
- Return label: flat $9.99 USD, deducted from your refund — nothing to pay upfront.
- Damaged, defective or incorrect items: we cover all return and replacement costs.
- No restocking fees.
- Exchanges: contact us and mention "exchange" — the new item ships once your return arrives.
- Refunds are issued within 7 business days of inspection.
See our full Return Policy.
Questions about your order or our products? We're happy to help.
Open
Hooizolder 214
Drachten Friesland 9205CD
Netherlands
Email: support@open.shop
Customer Service:
Monday to Friday, 8:00 AM – 6:00 PM PST (excluding public holidays)
We reply to all messages within 24 hours on business days. Weekend messages are answered on Monday.
For quick answers, visit our FAQ page or use our Contact Form.