How can sleep through the night without a disturbance?

Sleep hygiene. If having sleep problems, creating good sleep hygiene can help improve sleep. Adhere to a set bedtime, no food or drink for 2-3 hrs before, bed for sleep or sex only, no tv or music (but maybe white noise machine), minimize or remove any lights including led from clock/alarm/phone, no daytime naps. Get up if no sleep in 20 min and wait until sleepy. Of course, if disturbance from others these may not help.