I am sure you do already prepare to sleep however , it is worth mentioning some steps that will enhance and vastly improve your chances of good sleep .
Room temperature is critical , however this can pose some issues for couples, where one partner prefers cooler temperatures against a partner who likes a warm to hot room. So as best you can get the temperaturehow you are most comfortable.
Having a comfortable bed helps , along with the right pillow and height of pillow. it is Important to realise your body knows it needs to rest and sleep , it also knows it needs to be comfortable doing so .Give it what it needs.
Do away with as many electronic devices as possible , their very presence is a distraction ,and as previously said the subconscious mind takes onboard all prompts, good and bad it will do so even while you sleep. Even a stand by light on a tv can emit enough light to distract sleep.
As we have evolved from our distant primitive ancestors who had little extra light after the sun went down, save the light from a fire, the stars and the Moon. It stands to reason we still have the inbuilt ability to turn off when the light naturally fades at the end of the day, just like they did. However, this ability has been sabotaged by Morden living with lighting at the flick of a switch and electronic devices that admit light. So to give your body the best possible chance to rest, turn the lights off, darkness won’t harm you. If required have a small battery torch beside the bed for emergencies.
Don’t eat or drink immediately before retiring to bed , both food and drink stimulate the body , and this will work against you ;your body will want to act on the introduction of fresh fuel into its system , a glass of water is fine, but cut out all other types of drink for at least an hour before bedtime. Alcohol is not only a stimulant but also a depressant ; many believe it will help them sleep , but in truth it can make good sleep harder