PCs and consumer electronics provide us with a gazillion things to do all night. Video games, TV, social networking, chatting with friends, catching up on work. These things are addictive, and they call to us. Getting a good night's sleep has become a challenge. But gadgets can help solve it, too. Electronic sleep helpers have been around for quite a while. But a new generation of products is better than anything that's come before. In honor of the month of May, which is Better Sleep Month (who comes up with these things?), here are some of the newest and most interesting electronic sleep helpers.