If you’re trying to create a truly dark space — whether for better sleep, night shift recovery, or a home theater — the goal isn’t just “blackout,” but how well the blinds perform in real conditions.
Here are three SmartWings configurations that come closest to blocking 100% of light.
Quick answer: No roller blind can achieve literal 100% blackout in real-world use. But with the right SmartWings setup, you can reach 97%+ light blocking or near-total darkness — effectively pitch black for sleep and media viewing.
Below, we’ll walk through the top three configurations ranked by darkness level, along with why they work, real usage results, and how to choose the right option for your space.
Top 3 SmartWings Blackout Configurations (Ranked by Light Blocking)
1. Maximum Darkness: Bouvardia Dual-Sided + Side Rail Tracks
Total cost: starting at $294.99 ($209.99 shade + $85.00 tracks)
Darkness level: Near-total (closest to 100%)
Best for: Shift workers, extreme light sensitivity, home theaters
The Bouvardia fabric uses a tightly woven dual-layer structure that blocks light at the material level without needing additional backing.
When paired with Side Rail Tracks, which use U-shaped aluminum channels with internal fiber brushes, edge light is almost completely sealed.
In real-world use, this combination creates a space that feels fully enclosed. One user testing this setup in an office environment noted it blocked sunlight more effectively than other blackout solutions, making it suitable for anyone who needs true darkness during the day.
Why this option ranks first:
It combines the highest-performing blackout fabric with the most complete edge sealing. When installed as an outside mount, this setup comes closest to achieving true 100% blackout.
2. Best Value: Essential or Linen + Light Blockers
Total cost: starting at $239.98 ($179.99 shade + $59.99 blockers)
Darkness level: Up to 97% darker
Best for: Bedrooms, nurseries, daytime sleep
Both Essential and Linen fabrics provide strong light blocking at the fabric level. When combined with Light Blockers — L-shaped side strips that cover the typical light gaps — overall performance improves significantly.
Based on SmartWings testing, this setup can make a room up to 97% darker, which is enough for most daily use scenarios.
One user who switched from vertical blinds described the space as “almost completely dark,” with only soft ambient light remaining.
Why this option offers the best value:
It offers an excellent balance between performance and cost, making it the most practical choice for most homes.
3. Budget Option: Vinyl Blackout (Fabric Only)
Total cost: starting at $159.99
Darkness level: ~95%
Best for: Standard bedrooms, budget-focused setups
Vinyl Blackout is the most affordable option in the SmartWings lineup. Its smooth surface blocks around 95% of incoming light without any additional accessories.
In brighter conditions, you may still notice some light leakage around the edges, but for many users, the room remains dark enough for comfortable sleep.
Why this option works well on a budget:
A solid entry-level option. If needed, you can upgrade later by adding Light Blockers to improve edge sealing.
Why These Configurations Come Closest to 100% Darkness
Blackout fabrics can block 95–99% of light at the material level. The remaining light usually doesn’t come from the fabric itself — it comes from small gaps around the shade.
In real use, light leakage typically happens in three areas:
Side gaps — small openings on both edges of the shade, which can appear as thin lines of light in bright conditions
Top gaps — the space between the shade and the window frame, where light can enter from above
Bottom clearance — usually minimal, but still noticeable if the shade doesn’t sit tightly
This is why achieving near-total darkness isn’t just about choosing a better fabric — it’s about reducing these structural gaps.
The configurations above solve this in different ways:
Side Rail Tracks help seal the edges more completely
Light Blockers cover the side gaps effectively
Outside mount installation reduces both top and side leakage
Darker fabric colors can slightly improve overall light blocking
If you want a deeper look at how edge sealing works, you can refer to how side channel solutions help block light more effectively.
What Real Users Say
In real-world use, the difference is often noticeable.
One user who needed to adjust to a new time zone described the Linen blackout setup with Light Blockers as a “game-changer” for daytime sleep. Their only tip: for textured walls, it’s better to use screws instead of adhesive for a more secure fit.
Another reviewer comparing Bouvardia dual-sided fabric with other blackout options found that its tighter weave blocked sunlight more effectively, especially in office environments.
A long-term user also pointed out that lighter fabric colors may still allow slight light seepage, meaning darker shades tend to perform better within the same blackout category.
For more real-world examples, you can see additional user experiences here.
How to Choose Your Configuration
Choose based on how dark you actually need your space to be:
Option 3 (Vinyl Blackout, $159.99+)
Best if you’re on a budget and just need a comfortably dark room. Suitable for standard bedrooms with moderate sunlight.
Option 2 (Essential/Linen + Light Blockers, $239.98+)
The most practical choice for most homes. Ideal for bedrooms, nurseries, and daytime sleep with consistent darkness.
Option 1 (Bouvardia + Side Rail Tracks, $294.99+)
Best for near-total darkness. Recommended for shift workers, light-sensitive users, or home theater setups.
Installation tip: If possible, choose outside mount. Covering the full window frame helps reduce top and side light leakage significantly
Start Configuring Your Blackout Solution
These three configurations cover most blackout needs. For most people, Option 2 offers the best balance between performance and cost.
If you need near-total darkness, you can view the Bouvardia + Side Rail setup, or explore all SmartWings blackout options to find the right fit.
If you’re unsure, SmartWings can help you choose a setup that works for your space.
Blackout Blinds FAQs: What You Should Know Before Choosing
Q1. Can blackout blinds truly block 100% of light?
Not in real-world conditions. The goal is 97–99% light blocking, which is effectively pitch black for sleep and media use.
Q2. Do I need Light Blockers or Side Rail Tracks for blackout blinds?
Light Blockers work well for most bedrooms. Side Rail Tracks provide more complete sealing if you need near-total darkness.
Q3. Why do blackout blinds still let light in at the edges?
Standard shades are slightly smaller than the window opening, which creates side gaps. Accessories like Light Blockers are designed to fix this.
Q4. Does fabric color affect blackout performance?
Yes. Darker fabrics block slightly more light than lighter ones.
Q5. Which is better for blackout blinds: inside mount or outside mount?
Outside mount blocks more light. Inside mount looks cleaner but allows more gaps.
