Like dust, pet dander can exacerbate mild allergies. What's more, 17 percent of women say they are awakened during the night to care for their pet, according to a 2008 poll by the National Sleep Foundation
. That doesn't include those who are pushed out of a deep sleep into a lighter, less-satisfying stage by a pet purring, snoring, jumping off the bed or using the litter box or doggie door. Help your pet learn to appreciate having a bed of his own, and if you can't bear to banish him from yours, at least try to keep him away from your face.