I have one on each side of we bed and we coordinate the sound . usually , it be north Woods , which sound great with we southern suburb when we crack the window . sometimes we use thunderstorm and rain . I give one to my son this year for he birthday and this most recent purchase from Amazon -lrb- a amazing price -rrb- be for the guest room . so , if one of we can not sleep or have to get up and sleep in the guest room we can still be comfort with we sound machine . the only draw back be the bright light . I simply turn the clock face down . Problem solve . we use the beeper for a alarm and that work great because we leave the north Woods sound on all night . I even use it if I take a nap in the afternoon turn on the North Woods - zap ! I be out . Pavlov training I guess . you can check out all 20 sound at Sharper image . 10-16-11 Update : one of the best feature be the battery backup . believe I when I tell you that when the power go out , this be the one clock in the house that still tell time and at which time I appreciate the bright back light as it almost light up the room . we still use the North Woods -lrb- cricket sound and night sound -rrb- and with we window open at night the North Woods sound combine with we Southern Suburbs sound and its like surround sound . wonderful . we have be on a couple of trip and I have just unplugged my radio and plug in on my side of bed in motel and we get to sleep easily . the time never skip a beat . 6-18-12 Update : I have add Brookstone Tranquil Moments Sound therapy system with the sound of rain , which be far superior to Sharper image , along with sharper image north Woods . Ahhhhhhhhhhhhhh ! sound to sleep by . incredible . purchase at another site for $ 57 and free shipping . Brookstone be also very bright ; I cover it with two dark purple wash clothes behind a plant .