How does obesity affect quality of sleep?

It depends on how overweight a person is. In extreme obesity the decreased mobility, i.e., the ability to turn in bed, could have an impact on the quality of sleep. Finding a bed to accommodate someone who is severely obese may be difficult. There are a number diseases associated with obesity that can affect sleep, such as heart disease. Sleep apnea is a major concern in people who are obese; it can not only compromise sleep, but can lead to cardiovascular diseases.