The Shake Awake vibrating travel alarm clock is perfect for any situation where you’re sleeping in close proximity to others and don’t want an audible alarm to disturb others: sleeping in hostels, dorms or with a bedmate, for instance – no shrieking alarm (although that is an option). It’s also a great every day alarm clock for the hearing impaired. And worn under your shirt, the vibration against your chest wakes you from naps on planes, buses and trains. Nice private, quiet wakeup call.

The vibrating alarm clock comes with a lanyard (the string on the left side of the clock in the photo) hooked to the clock at one end and to a metal alligator clip at the other. Clamp the clip to the edge of your pillowcase and slide the clock inside, under your pillow. When the alarm goes off, you’ll feel the insistent vibration and hear the slight buzzing of the motor.