Pitch-Black Bedroom in 10 Seconds — Blackout + Thermal Curtain (KK1145)
Pitch-Black Bedroom in 10 Seconds — Blackout + Thermal Curtain (KK1145)
✅ Sleep through traffic and neighbors
✅ 100% blackout, any room
✅ Triple acoustic layer construction
✅ Cuts 25% window heat loss
✅ Installs in under 5 minutes
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Sleep deeper. Pay less for power. Hear less of the world outside.
Most "blackout" curtains let light bleed through the seams. Most "soundproof" curtains barely soften an echo. The KK1145 is built for people who want all three jobs done at once — total darkness, lower energy bills, and a quieter room — without a contractor or a renovation.
How it works
Three layers of dense, tightly woven fabric stop light, slow heat transfer through the window, and absorb mid-frequency sound reflections inside the room. Heavier than a standard blackout panel, lighter than acoustic theater drapes. Hangs on any standard curtain rod.
Tested in a sealed bedroom at noon. The room reads pitch black to the human eye — ideal for shift workers, night-shift parents, and home theaters.
Thermal lining slows heat loss in winter and heat gain in summer. Independent studies on insulated curtains show heating & cooling savings up to 25%.
Used by podcasters, streamers, ASMR creators, and homeowners across 40+ countries. 4.85★ average across 33 verified reviews.
What the numbers actually mean for your room
- Light: 99.9% blackout means you can fall asleep at noon. Use a wraparound rod and let the panel overlap the window frame by ~6 in (15 cm) on each side to seal the gap where most curtains leak light.
- Sound: A heavy curtain like this dampens sound — it cuts echo and softens outside traffic noise. It is not a substitute for a sealed door or double glazing if you need full STC-rated soundproofing.
- Heat: Thermal lining cuts the cold draft off cold windows in winter and the radiated heat in summer. Most users report a noticeably warmer room within an hour.
Sizes available (US & metric)
| Size | Width × Height |
|---|---|
| Small | 51 × 71 in / 130 × 180 cm / 1.3 × 1.8 m |
| Medium-Tall | 51 × 106 in / 130 × 270 cm / 1.3 × 2.7 m |
| Wide | 59 × 79 in / 150 × 200 cm / 1.5 × 2.0 m |
| Wide-Tall (most popular) | 59 × 106 in / 150 × 270 cm / 1.5 × 2.7 m |
Need a custom size? Email service@arrowzoom.com with your window dimensions in inches or centimeters.
Specs at a glance
| Light blocking | 99.9% blackout (UV included) |
|---|---|
| Construction | Triple-layer woven fabric with thermal lining |
| Approx. weight (Wide-Tall) | ~3.3 lb / 1.5 kg per panel |
| Header | Reinforced grommet top — fits rods up to 1.6 in / 40 mm |
| Fabric safety | Non-toxic, OEKO-tested |
| Care | Cold gentle wash, low tumble or hang dry |
What's in the box
- 1 × Arrowzoom KK1145 blackout + thermal curtain panel (size and color you select)
- Reinforced grommet header — fits any standard curtain rod up to 1.6 in / 40 mm
- Care card with washing instructions (US & metric)
Install in 4 steps
Made for
Our 100-day guarantee
Hang it. Sleep behind it. If your room isn't darker, quieter, and warmer than before — send it back within 100 days for a refund.
Frequently asked questions (click to expand ▾)
Is this curtain truly soundproof?
It is sound-dampening, not soundproof. It reduces echo inside the room and softens outside noise like traffic, voices, and lawnmowers. For studio-grade soundproofing you'd also need to seal the door and treat the walls.
How much light does it actually block?
99.9% through the panel itself. To get total darkness, mount on a wraparound rod and let the panel overlap the window frame by ~6 in (15 cm) on each side — that closes the gap where most curtains leak light.
Will it really save up to 25% on energy?
Yes — up to 25% on heating and cooling, based on independent studies of insulated curtains. Real-world savings depend on your window, climate, and how much sun the room gets. The thermal lining is real either way — you'll feel the temperature shift within an hour of hanging it.
What size do I need? (US & metric)
Match width to your window plus 6 in (15 cm) on each side for full light seal. For length, floor-length panels block more light and look better than mid-length. If you're between sizes, go up. Need exact fit? Email service@arrowzoom.com.
How heavy is it? Will my rod hold it?
About 3.3 lb (1.5 kg) per panel for the Wide-Tall size — heavier than a standard blackout curtain because it's three layers thick. Use a metal rod (not plastic) and anchor brackets into a stud or with proper drywall anchors. A standard 1 in (25 mm) rod is fine.
Can I wash it?
Yes — cold gentle cycle, mild detergent, low tumble or hang dry. Don't bleach. Don't iron the thermal lining directly.
Is the fabric safe / non-toxic?
Yes. The fabric is OEKO-tested and free of harmful chemicals. Safe for nurseries, kids' rooms, and bedrooms.
How long does shipping take?
Standard US shipping is 5–10 business days. Free over $99. International shipping available at checkout — typically 7–14 business days depending on country.
Do you ship internationally?
Yes, we ship worldwide. Most customers are in the US, but we have customers across 40+ countries. International rates and ETA show at checkout once you enter your address.
What if it doesn't work in my room?
30-day returns. Hang it, test it, and if it isn't darker, quieter, and warmer than what you had — return for a refund. Email service@arrowzoom.com to start.
Do you offer custom sizes?
Yes — email service@arrowzoom.com with your window dimensions (in inches or cm) and we'll quote a custom panel.
Shipping & Returns
Shipping & Returns
Purchase over $99USD or more to get FREE Shipping.
Normal Shipping
- 1-2 weeks in your hands
Express Shipping
- 1 week or less in your hands
Returns Policy
- We accept returns under specific conditions. Please follow these guidelines:
- How to Initiate a Return: Email service@arrowzoom.com with your name and order number.
- No Refunds for Buyer’s Remorse: Ensure your order details (design, size, address) are correct before purchasing.
- Cancellation Fee: Orders canceled (shipped or not) incur a 15% fee due to production costs.
Returned Parcels:
- Reshipping requires you to pay the shipping fee.
- For wrong items or quality issues, we refund the product value minus a 50% restocking fee.
- Shipping costs are non-refundable.
Return Conditions:
- Items must be in new, unaltered condition.
- Returns for mistaken shipments must be approved within 3 working days of receipt.
- Requests must be made within 2 weeks of shipping.
Note: No credit is given for items damaged during shipping. Contact the shipping company for compensation.
Soundproofing FAQs
Frequently Asked Questions
How do I soundproof my wall against noisy neighbours? 🤫
How do I soundproof my wall against noisy neighbours? 🤫
Soundproofing aims to prevent sound from entering or leaving a room, like blocking noise from those pesky neighbours. For more tips, check out our guide on soundproofing against noisy neighbours! 📖
How many Acoustic Panels Do I Need?
How many Acoustic Panels Do I Need?
The first step is going to be installing acoustic panels on your walls. These reduce the reverberations and echoes in the space.
Use our Free Tiles Calculator to find out
How do you install soundproofing? 🔧
How do you install soundproofing? 🔧
There are two main options for installing our DIY soundproofing solutions, and we're here to support you every step of the way!
DIY Installation:
All of our systems are DIY-friendly, saving you on installation costs.
80% of customers install the systems themselves because we’ve made it easy!
We provide simple, step-by-step installation guides and videos for a hassle-free experience.
Our technical team is ready to answer any questions and offer support. We're here for you! 🤗
Use a Local Contractor:
You're on your way to a noise-free home! If DIY isn’t an option, consider hiring a local tradesperson.
We simplify the process by communicating directly with your tradesperson throughout the installation.
Visit our installation page for more details! 📞
What's the difference between impact and airborne noise? 🔊
What's the difference between impact and airborne noise? 🔊
1. Airborne Noise
- This travels through the air, like conversations, TV sounds, or barking dogs. When sound waves hit a building, they cause it to vibrate, transmitting through the structure.
2. Impact Noise
- This results from physical impacts on buildings, such as footsteps, slamming doors, or moving furniture. Impact noise can be harder to isolate, as these vibrations are stronger and travel further through dense materials.
What are decibels? 📏
What are decibels? 📏
Decibels are measured logarithmically (not as a percentage) . This means that every increase of 10dB on the scale is a tenfold increase in sound pressure level (SPL) . Near silence is 0dB 🤫, while a sound at 10dB is ten times louder!
- 30-40 dB = Soft music, whisper 🎶
- 60-80 dB = Office noise, traffic 🚗
- 85-100 dB (HARMFUL) = Subway, shouted convo, chainsaw ⚠️
- 100-140 dB (DANGEROUS) = Chainsaw, loud concert, racing, shooting range 🚨
Is everything in stock and ready to ship? 📦
Is everything in stock and ready to ship? 📦
In stock, ships in 1-2 business days! Learn More
Where Is My Order?
Where Is My Order?
Track your order: Check your email or visit our Tracking Page.
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FREE & FAST GLOBAL SHIPPING 🚚
30 DAYS RETURNS ✅
24/7 Live Support 📞
FREE & FAST GLOBAL SHIPPING 🚚
30 DAYS RETURNS ✅
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