What I found particularly interesting is that less that 5 hours of sleep can actually increase your risk of diabetes by as much as 2 1/2 times. It can also lead to increase in heart attack by 45%. In general it increases your risk of death by 12%. A 12% boost in death likelihood over a few hours of sleep every night. Pretty impactful.
Lack of sleep can also make you gain weight and feel lethargic. Your body goes into fight or flight mode and does not process food properly causing it to store excess fat. Over time the results of this can be noticeable and life impacting.
As you can see, the above infographic gives an excellent visual of how lack of sleep can contribute for various comorbidities that can certainly contribute to your early demise.