Casper Glow Light vs Circadian Optics Sunrise Lamp — Which Should You Buy?

Side-by-side comparison of Casper Glow Light and Circadian Optics Sunrise Lamp. We compare specs, performance, and value to help you decide.

Updated 2026-03-09 Independently reviewed
Casper Glow Light

Casper Glow Light

8.5/10
$129 /one-time
VS
Circadian Optics Sunrise Lamp

Circadian Optics Sunrise Lamp

8.4/10
$45 /one-time

Feature Comparison

Feature Casper Glow Light Circadian Optics Sunrise Lamp
Brightness Adjustable Up to 10000 lux
Sunrise Gradual
Light Type Warm LED LED light therapy
Display None
Control Touch
Portable Battery option Yes
Dimensions 4 x 4 x 2 inches 4 x 4 x 2 inches
Alarm Sound No
Sunrise Duration 15, 30 min
Sounds None
Power USB
Warranty 1 year

Casper Glow Light

Pros

  • Minimalist design
  • No display—no blue light
  • Touch to dim/brighten
  • Portable—battery option
  • Warm light
  • Simple setup
  • Casper quality

Cons

  • No alarm sound
  • Limited customization
  • Single light color

Circadian Optics Sunrise Lamp

Pros

  • Bright light therapy
  • Gradual sunrise
  • Compact design
  • USB powered
  • No alarm sound (light only)
  • Travel friendly
  • Reasonable price

Cons

  • No sound options
  • Smaller light surface
  • USB only

Our Verdict

Casper Glow Light

Best minimalist option for those who want light-only wake, no display.

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Circadian Optics Sunrise Lamp

Best for light-only wake with light therapy benefits.

Sale Price Live — Don't Miss Out

Our Methodology

We test each sunrise alarm clock for light intensity, ramp duration, sound options, and overall wake experience over 30 mornings. Details on testing process. No manufacturer has editorial influence.

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