L-Tracks are light-blocking strips designed to reduce side light gaps around cellular, honeycomb, Roman, and many other blackout shades.
Inside or outside mount • Trim to fit • Removable or permanent options
How Removable L-Tracks Work
See how our magnetic attachment system lets you remove and reattach your L-Tracks whenever you need access to your window.
Perfect for tilt-in windows, screen removal, cleaning, and anywhere you need occasional access to your window.
Requires only about 5/16″ (thickness of as standard pencil;) clearance per side.
How Permanent L-Tracks Work.
Can Be Removed With Little To No Damage To Your Wall
Perfect for tighter spaces and installations where you don’t need to remove the L-Tracks on a regular basis. Requires only about 3/16″ of clearance per side — approximately the thickness of 3 pennies.
Concerned About Your Walls?
See how our permanent adhesive can be removed with little to no damage to properly prepared surfaces.
Secure when you need it. Removable when you’re ready.
Light Blocking Strips Designed to Fit Your Existing Shades
Sleepy Time Tracks L-Tracks help reduce light leaking around the sides of cellular, honeycomb, Roman, and many other blackout shades. Available in 60″, 72″, and 90″ lengths, they can be trimmed for a custom fit and installed with inside- or outside-mounted shades.
Choose Removable Magnetic L-Tracks when you need regular access to your window, or Permanent Adhesive L-Tracks for a slimmer, long-term installation. Both are designed to help block up to 97% of side light without replacing your existing shades.
Frequently Asked Questions
What tools do I need for installation?
Can they be trimmed to fit smaller windows?
What is the difference between the removable and permanent version?
Removable (Magnetic): Uses magnetic adhesive strips so you can pop the tracks on and off whenever needed. Perfect for tilt-in windows or removing screens. Includes our patented foam gasket that seals out slivers light from uneven walls.
Permanent (Adhesive): Designed for long-term use with strong, temperature-resistant adhesive. While not intended to be removed, if you do take them down, they typically come off with little to no wall damage. Once removed, they cannot be reapplied.
Both versions are tool-free, simple to install, and provide a secure fit for your blackout shades.
Will L-Tracks work with my type of shade?s?
Yes. Sleepy Time Tracks work with most inside- or outside-mounted shades. They’re especially effective with cellular shades. For roller shades, our Side Channels are the best option. They can also be used with flat Roman shades for improved light blocking.
Can I use them with curtains?
Do they come with installation instructions?
How much light will L-Tracks block?
Sleepy Time Tracks can block up to 97% of light leaks, creating a nearly pitch-dark room. For best results, mount the tracks as close as possible to the shade material—touching is preferred to seal out even the smallest slivers of light. Perfect for nurseries, night shift workers, or anyone sensitive to light.
Can they be painted?
Will Sleepy Time Tracks stick to stucco or textured walls?
How much space do I need for L-Tracks to fit?
Removable L-Tracks require about 5/16″ of clearance per side — approximately the width of a standard pencil. Permanent L-Tracks require about 3/16″ per side — approximately the thickness of 3 pennies.
Trusted in Over 100,000 Homes Across the U.S. & Canada
What People Are Saying About Our Light Blockers for Blinds
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Our no-hassle 30 day guarantee removes any risk on your part for trying Sleepy Time Tracks. If you are not absolutely delighted with your purchase then simply return them for a full-refund. Buyer pays return shipping.
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