Glowster in charge mode with lamp on.
The photos allow you to see how bright these are initially. This level only lasts for about 15 minutes. They glow but do not project illumination throughout the room.
ChatGPT Image Aug 25, 2026, 09_49_32 AM.png
Contrast of light and dark mode when used as furniture coaster.
Glowster charging under lamp light.
The photos allow you to see how bright these are initially. This level only lasts for about 15 minutes. They glow but do not project illumination throughout the room.

SlumberLights Glowsters – Glow-in-the-Dark Safety Coasters (4 Pack)

$20.00

Glowsters glow-in-the-dark lightweight nightlights provide just enough light all throughout the night.

Soft, non-disruptive glow that guides without waking the brain. Charges in 15 minutes of light; glows 10+ hours, fading as eyes adapt.

  • Soft green glow provides just enough light for kids, seniors, parents, and midnight navigation.

  • Doubles as stylish drink/furniture coasters by day.

  • Hazard markers for furniture edges, doorways, stairs, or camp.

  • Lightweight travel nightlights.

  • Long-life photoluminescent material (tens of thousands of cycles); non-toxic, non-radioactive.

  • Iced drinks may cause overflow condensation. Glowsters are protective and guide the eye, they are not absorptive.

When the power is out, Glowsters stay on. Over time, they become beacons in the dark for your brain. You will know exactly where you are in your space so long as the Glowsters glow. And that’s about 10 hours!

  • Doesn't just lower the light, Slumberlights light the obstacles you need.

  • Not a blinding point of light, Slumberlights provide a soft glow.

  • Slumberlights don't cast light and make shadows, they simply glow to help you avoid hazards.

  • Slumberlights make great furniture coasters. Protecting the floor AND lighting the way.

Glowsters glow-in-the-dark lightweight nightlights provide just enough light all throughout the night.

Soft, non-disruptive glow that guides without waking the brain. Charges in 15 minutes of light; glows 10+ hours, fading as eyes adapt.

  • Soft green glow provides just enough light for kids, seniors, parents, and midnight navigation.

  • Doubles as stylish drink/furniture coasters by day.

  • Hazard markers for furniture edges, doorways, stairs, or camp.

  • Lightweight travel nightlights.

  • Long-life photoluminescent material (tens of thousands of cycles); non-toxic, non-radioactive.

  • Iced drinks may cause overflow condensation. Glowsters are protective and guide the eye, they are not absorptive.

When the power is out, Glowsters stay on. Over time, they become beacons in the dark for your brain. You will know exactly where you are in your space so long as the Glowsters glow. And that’s about 10 hours!

  • Doesn't just lower the light, Slumberlights light the obstacles you need.

  • Not a blinding point of light, Slumberlights provide a soft glow.

  • Slumberlights don't cast light and make shadows, they simply glow to help you avoid hazards.

  • Slumberlights make great furniture coasters. Protecting the floor AND lighting the way.

Illuminate your nights with Slumberlights, the innovative glow-in-the-dark nightlights that harness the power of daylight to emit a soft, soothing glow after dark. These coaster-style lights are a great addition to household safety. Business environments have strict requirements to allow egress under normal lighting, emergency lighting, and complete electrical failure. Our houses don't require such strict regulation, but, Slumberlights can help in emergencies.

  • Completely passive design requires no electricity

  • Slumberlights are super simple to install and require no connection to an electrical outlet

  • Slumberlights have a long lifetime 10's of thousands of charge, discharge cycles

  • Electricity outages are common

  • No battery to fail, no bulbs to burn out

  • Slumberlights are non-toxic and non-radioactive

Order as many as it takes to guide your family to an exit. Enhance your nighttime safety with Slumberlights products. Dog tags to you don’t trip or kick the pup, key fobs to find your keys (car, house, gun safe) or whatever you can loop to, will keep you prepared for anything when things to bump in the night.

Important note about brightness: The photos show the initial brightness level, which lasts about 15 minutes. After that, Glowsters continue to glow softly but do not project strong illumination across the room. This is intentional — the goal is gentle guidance, not a bright nightlight.

More about our materials, natural cork, pvc, and photoluminescent masterbatch.

You may be able to save on shipping if you have amazon Prime shipping. This product is available on amazon.