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Unisex nan ergonomic 3D sleep mask with contoured eye cavities and adjustable comfort band Kalsten

Regular price $24.99 $50.99 SAVE $26.00 (51% OFF) Sale price
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Product Description

The unisex ergonomic 3D sleep mask from Kalsten offers optimal darkness and exceptional comfort for restful sleep at home and on the go. The contoured eye cavities ensure that lashes and eyelids are not pressed, while the tailored nose area effectively blocks light. Ideal for travel, shift work, or relaxed power naps.

Product Features

  • Ergonomic 3D design with anatomical eye cavities for pressure-free and natural eye movement
  • Shape-stable, soft foam core that gently conforms to the face
  • Adjustable comfort band for a secure fit on different head shapes
  • Very good light protection due to precisely fitted nose area
  • Lightweight and breathable – suitable for extended wear without overheating
  • Care instructions: gentle cleaning, quick drying
  • Unisex design, ideal for travel, meditation, yoga, sleep therapy, and relaxation

Benefits

  • Improved sleep quality through complete darkness
  • Comfortable feel without pressure on eyes and lashes
  • Easy to adjust for a perfect fit on any head
  • Practical for on the go: easy to store and ready to use quickly

Why Kalsten ?

Kalsten stands for thoughtfully designed sleep accessories focusing on comfort and functionality. This sleep mask combines modern design with practical details to noticeably improve your sleep routine. Perfect as a gift or as an upgrade to your own sleep gear.

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.