SUNNYSASS · HELP & CARE
Questions, Answered.
For the light, the night, and everything in between.
Find answers about our UV-reactive tees, silk sleep masks, shipping, returns and care.
UV-Reactive Embroidery
Changes under sunlight
Free Worldwide Shipping
No minimum required
30-Day Return Request
From delivery date
Tracked Delivery
Tracking included
01 / SUNLIT
Sunlight Changes the Story.
A little science, a lot of craft — everything you might want to know about our UV-reactive embroidery.
How does the color-changing effect work?
Selected mountain peaks are stitched with sunlight-reactive thread. Indoors or in the shade, they appear pale and understated. Step into natural sunlight or UV light, and a soft golden tone gradually appears.
Does the entire design change color?
No. Only selected areas use UV-reactive thread. The contrast between permanent embroidery and sunlight-reactive details is part of the design.
Is the effect different on white and black tees?
Yes. The white tee creates the clearest, most noticeable transformation, while the black tee reveals the gold in a more understated way.
How is the embroidery made?
The main artwork is created with precision machine embroidery, while selected UV-reactive areas receive additional hand-finished detailing.
Does the embroidery feel heavy?
The back artwork is intentionally substantial because of the dense embroidery. You will feel more structure than on a basic printed tee, but the garment is designed for comfortable everyday wear.
How should I choose my size?
Choose your usual size for a regular fit. Size down for a closer fit, or size up for a more relaxed, oversized look. Please check the size chart on the product page before ordering.
How long does the sunlight-reactive effect last?
The effect is designed for repeated use. Its longevity can vary depending on UV exposure, washing frequency and care. Following the care instructions will help preserve the reactive embroidery.
How should I care for my tee?
Wash gently at or below 30°C, avoid bleach and harsh detergents, and air dry in the shade whenever possible. Turn the tee inside out before washing to help protect the embroidery.
02 / MOONLIGHT
Rest, Refined.
Everything you need to know about silk, fit, blackout and care.
What kind of silk do you use?
We use 22 momme, Grade 6A mulberry silk for a smooth, substantial feel and elevated everyday comfort.
Why 22 momme?
22 momme silk has a denser, more substantial hand feel than lighter silk. It offers a balance of softness, durability and a quietly luxurious finish.
Does the mask completely block light?
The mask is designed for near-complete blackout when fitted correctly. Individual face shape and fit can slightly affect how much light enters around the edges.
Will it put pressure on my eyes or lashes?
The contoured eye area is designed to create extra space around the eyes and lashes, helping reduce direct pressure while you rest.
Is the strap adjustable?
Yes. The wide adjustable strap lets you fine-tune the fit for secure, comfortable wear without needing to tie a knot.
Is it suitable for side sleepers?
Yes. The soft silk construction and contoured profile are designed to remain comfortable across common sleeping positions, including side sleeping.
How do I wash my silk sleep mask?
Hand wash gently in cool water with a silk-friendly detergent. Do not bleach, wring or tumble dry. Reshape and air dry away from direct sunlight.
03 / DELIVERY
From SunnySass to You.
A few things to know while your order makes its way to you.
1–2
Business Days
Processing
8–12
Business Days
US / Europe / Australia
FREE
Worldwide
Standard Shipping
When will my order ship?
Orders are typically processed within 1–2 business days before shipment.
How long does delivery take?
Standard delivery to the United States, Europe and Australia typically takes around 8–12 business days after processing.
How do I track my order?
Once your order ships, we’ll send tracking information to the email address used at checkout.
Do you ship internationally?
Yes. SunnySass offers standard worldwide shipping to supported destinations.
Will I need to pay customs or duties?
For most supported destinations, applicable taxes and duties are handled as part of the order. If local regulations create an exception, we’ll do our best to provide clear guidance.
What if my tracking says delivered but I can’t find my package?
Please check around your delivery location and with household members or neighbors first. If the package still cannot be found, contact us with your order number and we’ll help review the shipment.
Can I change my shipping address?
Contact us as soon as possible. If your order has not yet entered fulfillment, we’ll do our best to update the address. Once shipped, changes may no longer be possible.
04 / RETURNS
Things Don’t Always Work Out.
That’s okay. Here’s how we’ll help make things right.
01
Email Us
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02
We Review
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03
Return, Exchange or Resolution
How long do I have to request a return?
You may request a return within 30 days of delivery, subject to the conditions in our full return policy.
What condition must the item be in?
Returned items should be unworn, unused, unwashed and in their original condition with packaging and tags where applicable.
Who pays for return shipping?
Return shipping responsibility depends on the reason for the return. For damaged, defective or incorrect items, please contact us first so we can review the case. For other returns, the customer may be responsible for return shipping.
What if my item arrives damaged or defective?
Please contact us with your order number and clear photos of the issue. We’ll review the situation and provide the most appropriate resolution.
When will my refund be processed?
Once an approved return is received and inspected, the refund will be issued to the original payment method. Bank processing times can vary after the refund is submitted.
How do I start a return?
Contact us with your order number and the reason for your return. Please wait for return instructions before sending any item back.
Still Wondering?
We’re happy to help with anything we haven’t answered here.
hello@sunnysass.com We typically reply within 1–3 business days.