We Americans love our coffee. After all, the average adult guzzles around 70 gallons of coffee a year — and spends over $1,000 annually on morning doses of caffeine. While the habit can be hard on your wallet, the health benefits of consuming coffee are numerous: Research shows it can reduce your risk of developing type 2 diabetes, Parkinson's disease, dementia and heart disease. And particularly for business travelers who need to work through the night and then impress clients the next morning — all the while recovering from jet lag — a ready cup of joe is essential. We’ve found five of the best hotel coffee bars across the States so you can get that jolt you need without ever having to leave your hotel.

Knave at Le Parker Meridien , New York City (pictured above)

Le Parker Meridien’s coffee bar is about as sexy as they come. The hotel’s website claims it would be “sacrilege” to venture anywhere else for coffee, and they have a point: The large space has a warm, upscale vibe with red velvet curtains, high stained-glass ceilings, antique chandeliers and plush chairs and couches that allow for a fluid shift from daytime coffee bar to afternoon cocktail lounge. Clients will be impressed by the posh atmosphere, as well as the light menu that features pastries and panini.

Best Coffee Bar for When You’re Burning the Midnight Oil:

Perks Coffee & More at the Grand Hyatt San Antonio

A popular business hotel — with amenities such as a full-service FedEx business center and modern meeting rooms — the Grand Hyatt also features Perks Coffee & More, a cute coffee-bar-meets-convenience-store. Along with coffee, Perks serves up tasty pastries and prepackaged sandwiches and salads, and best of all, it’s open around the clock so you can work through the night.

Starbucks Coffee at the Courtyard Seattle Bellevue/Downtown

If Eastside convenience is what you’re looking for, the Marriott Courtyard Bellevue is a solid choice. And it delivers caffeine convenience as well: The hotel features an on-site Starbucks, so when you’re on the go you can simply head downstairs and order up your daily latte or buy a prewrapped sandwich. Numerous other hotels are home to Starbucks cafes, such as the Eden Roc and the InterContinental in Miami.

It’s fitting that the hipster Ace Hotel is home to the first Stumptown Coffee on the East Coast. The Portland-based organic, fair-trade coffee shop and roaster attracts guests and locals, but guests get the extra perk of having Stumptown coffee available 24 hours a day on the room service menu.

The Fairmont combines the history, cachet and decor of a turn-of-the-20th-century grand old dame with the amenities, technology and corporate-dominated clientele of a large chain property. But the iconic hotel has seen its fair share of celebrities as well — including Katie Holmes, President Obama, Harrison Ford and Courteney Cox — and its quaint Caffe Cento is a nice spot to keep your eyes peeled for stars. Plus, you can enjoy your coffee and pastry alfresco at the coffee bar’s outdoor tables.

You can’t return a bad vacation. That’s why Oyster.com, “The Hotel Tell-All,” and partner of The Travel Channel, comprehensively visits, photographs, reviews and rates each hotel we feature. Basically, we uncover the truth, before it’s “uh-oh” time.