Although most people disagree about the proper firmness of a mattress, nearly everyone needs a good night's sleep.

• Nearly two-thirds of American adults experience a sleep problem a few nights per week or more, according to the National Sleep Foundation.
• Forty-three percent of adults reported that they are so sleepy during the day that it interferes with their daily activities.
• An estimated 100 million Americans suffer from sleep deprivation.

Research indicates that a good mattress can improve the quality of a person's sleep. Studies sponsored by Select Comfort at Stanford University and Duke University compared a night's sleep on a Sleep Number Bed by Select Comfort™ to that of premium innerspring mattresses:

• Eighty-seven percent of test subjects fell asleep faster and experienced deeper sleep on a Sleep Number® bed.
• Seventy-seven percent reported increased energy and 67 percent indicated reduced daytime sleepiness on a Sleep Number® bed.
• Ninety-three percent of participants experienced back pain relief on a Sleep Number® bed.

In a similar study sponsored by Select Comfort and conducted by the Sister Kenny Institute at Abbott Northwestern Hospital in Minneapolis, researchers compared people's experiences on a Sleep Number® bed to that of an innerspring mattress:

• Eighty-nine percent reported improved sleep quality.
• Sixty-seven percent reported reduced daytime sleepiness.
• Sixty-two percent reported improved general health.