The new service lets hotels send messages to guests, letting them know about events happening that night in the hotel or other special discounts. Additionally, the hotel booking app now offers last-minute deals where users can book same-day stays – until 2 a.m. at major hotels in Las Vegas.

HotelTonight has experienced rapid success with more than 350,000 downloads since its launch in January 2011.

Book me
Many hotels are taking advantage of using the messaging service within the HotelTonight app.

The Hard Rock Hotel & Casino in Las Vegas is giving HotelTonight bookers a free upgrade to the luxurious HRH Tower.

The Sagamore in Miami is throwing in a $50 local restaurant certificate.

In addition, Hotel 71 in Chicago is offering a pair of free tickets to a White Sox game.

Consumers can save on hotel bookings

Consumers can get a $25 credit when they sign up

Last-minute trips
HotelTonight is also making it easy for consumers to book their last-minute trips to Las Vegas.

According to the company, the Las Vegas deals are ideal for people in cities such as Los Angeles, San Diego or Phoenix, who can book a room en route in just 10 seconds.