The "Eat Sleep Beer Repeat" beer mug is a perfect companion for beer enthusiasts who appreciate the simple joys in life. Here are some features and details that could make this mug stand out:

1. High-Quality Material: Crafted from durable, high-quality glass or stainless steel, ensuring longevity and resistance to breakage.

2. Generous Capacity: Designed to hold a substantial amount of beer, allowing for ample enjoyment without frequent refills.

3. Comfortable Grip: Ergonomically designed handle for a comfortable and secure grip, minimizing the risk of spills.

4. Double-Walled Insulation (Optional): For those who prefer their beer chilled longer, a double-walled insulation feature could be incorporated to maintain the temperature of the beverage.

5. Microwave and Dishwasher Safe: Convenience is key, so ensuring that the mug is safe for both microwave and dishwasher use can make it a hassle-free addition to any kitchen.

6. Stylish Design: The mug can feature a sleek and modern design, with the phrase "Eat Sleep Beer Repeat" prominently displayed in an eye-catching font, perhaps accompanied by beer-related graphics or motifs.

7. Versatile Use: While primarily designed for beer, the mug can also be used for other beverages such as water, soda, or cocktails, adding to its versatility.

8. Perfect Gift Option: Packaged in an attractive box, this beer mug makes an excellent gift for birthdays, holidays, or any special occasion for the beer lovers in your life.

9. Customization Options: Offer customization options such as the ability to add a name or personal message to the mug, making it a unique and cherished item.

10. Manufacturing Details: Ensure transparency about the manufacturing process, including details about eco-friendly practices or ethical sourcing, appealing to environmentally conscious consumers.

By incorporating these features and details, the "Eat Sleep Beer Repeat" beer mug can become a must-have accessory for anyone who enjoys kicking back with a cold brew after a long day.