Are you tired of napping at the gate during layovers? A new generation of hotels will let you take a hot shower and curl up in a bed without leaving the airport. Below are three properties worth checking out.

1. Sheraton Hotels & Resorts Milan Malpensa Airport

Located in Terminal 1 of Milan's main airport, this 433-room hotel has a 10,000-square-foot spa and fitness center with an indoor swimming pool, along with 22 meeting rooms. The Sheraton plans to open similar airport hotels in Detroit, Pittsburgh, and Moscow this year. COST: Starting at $160 a night

2. Yotel London Gatwick

This Gatwick airport hotel features 47 sleek pods outfitted with a bed, foldout desk, small bathroom, and flat-screen TV. Yotel, which also has facilities in London's Heathrow Airport and Amsterdam's Schiphol Airport, is scheduled to open five airport properties in the United States and Europe by next year. COST: Starting at $45 for a four-hour stay

3. Hilton Beijing Capital Airport

Just steps from Terminal 3 of the Beijing Capital Airport, this swank 320-room hotel has several restaurants and bars, a spa and fitness center, and 21 meeting rooms. Hilton plans to open hotels in New York City's John F. Kennedy Airport and Germany's Frankfurt Airport this year. COST: Starting at $253 a night