Sleep problems are widespread in the US, affecting adults and kids alike, but a new survey by the Centers for Disease Control and Prevention finds that single moms not only sleep less than any other demographic, they also have a harder time falling and staying asleep and they are more likely to wake up not feeling rested most mornings, reports the Los Angeles Times . { "position1" : { "type" : "track", "id" : 5917180, "name" : "Relaxing Rain Sounds", "description" : "Nature Sounds - A Day Of Rain", "artist" : "Technomind", "artistid" : "173485" } } "These results are not surprising," one sleep scientist not involved in the research tells Live Science .