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404 Error: Sleep Not Found (Need Coffee) - Two-Tone Coffee Mug

4.8 out of 5 stars rating
22644 Total Reviews |
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Two-Tone Mug
-CA$1.45
+CA$1.35
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Black

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Style: Two-Tone Mug

Add a pop of color to your morning coffee! The outside of the mug features a bright white base for your photo, logo, pattern, or saying, while the inside is vividly glazed in rich color. Give this fun gift to a friend, or add some zest to your dinnerware collection.

  • Available in 11-ounce or 15-ounce
  • Dimensions:
    • 11-ounce: 3.2” D x 3.8" H
    • 15-ounce: 3.4” D x 4.5" H
  • Microwave and dishwasher safe
  • Use caution when removing the mug from the microwave. Use a pot holder or glove as necessary if it is too hot to the touch. Do not microwave an empty mug
  • Strong, ceramic construction
  • Meets FDA requirements for food and beverage safety
  • Printed on demand in Reno, NV
  • Do not overfill and be careful with hot liquids that may scald
  • Keep out of reach of children when filled with hot liquid

About This Design

404 Error: Sleep Not Found (Need Coffee) - Two-Tone Coffee Mug

404 Error: Sleep Not Found (Need Coffee) - Two-Tone Coffee Mug

For every programmer who’s ever searched for sleep but found coffee instead. “404 Error: Sleep Not Found (Need Coffee)” is the ultimate funny coding design for developers, software engineers, IT professionals, computer science students, and late-night tech workers. Inspired by classic web error messages, this design blends programmer humor with coffee addiction in a relatable and giftable way. Perfect for mugs, hoodies, t-shirts, stickers, laptop sleeves, and office decor. A must-have for coders who debug better with caffeine.
Coffee Mood Studio
Artwork designed by
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Customer Reviews

4.8 out of 5 stars rating22.6K Total Reviews
19970 total 5-star reviews1913 total 4-star reviews343 total 3-star reviews163 total 2-star reviews255 total 1-star reviews
22,644 Reviews
Reviews for similar products
5.0 out of 5 stars rating
5 out of 5 stars rating
By Lori B.March 8, 2024 • Verified Purchase
Classic Mug, 325 ml
I bought this for my niece's birthday and she loved it! She uses it daily! Thanks Zazzle for always making it right! Quality was excellent!
5.0 out of 5 stars rating
5 out of 5 stars rating
By AnonymousSeptember 29, 2017 • Verified Purchase
Two-Tone Mug, 325 ml
Zazzle Reviewer Program
I ordered these with interiors of yellow, red, maroon, pink, navy blue, and light blue. Note that the navy blue is VERY dark and looks black in some lighting. The mugs have survived 10 months of use so far! My friends were all very happy with them. Print turned out very clear. Colours were accurate. Thank you!
5.0 out of 5 stars rating
5 out of 5 stars rating
By V.December 22, 2021 • Verified Purchase
Two-Tone Mug, 444 ml
Zazzle Reviewer Program
This was my second order. Every staff member in the office has their individual mug with their name. This gives us peace of mind in terms of hygiene (especially during covid-19) and as a side effect, we know who did not clean up after themselves after lunch. It was fun to design according to one's personality and was received with a joy.. Also it makes a thoughtful gift for any occasion. Print was easy to design and turned out to be a very good quality. No flaws.

Tags

Mugs
funny programmer giftcoffee coding humorsleep not foundcoder life shirtdeveloper coffee mugtech humor designlate night codingcaffeine addict programmercomputer science gift404 error
All Products
funny programmer giftcoffee coding humorsleep not foundcoder life shirtdeveloper coffee mugtech humor designlate night codingcaffeine addict programmercomputer science gift404 error

Other Info

Product ID: 256012461905198457
Designed on 2026-03-04, 12:59 PM
Rating: G