I got 3 hrs of sleep other night, (noisy neighbors) & only 4 hours last night with quiet! unusual for me. what is wrong? will something bad happen?

You will be okay!: It is very unlikely that something bad will happen! You may have mild symptoms such as daytime tiredness, difficulty concentrating, or a headache in the next couple days until your body becomes rested. Most people have a rough time sleeping on occasion, and there are no long-term effects. It's often caused by stress or anxiety. Less often, difficulty sleeping is associated with depression.