Soothing background sounds help many people to fall asleep. This attractive, 15 cm diameter alarm clock gives you a choice of rain, thunder, white noise, a babbling brook, two different lullabies, birds and the ocean. You can also choose the time to stay on or switch off after 5, 15 or 30 minutes. The clock is powered by 3 AA batteries (not supplied) or you can charge it using your phone’s USB adaptor. Sweet dreams!