We need enough good quality sleep to be healthy and fit.
Many factors contribute to a lack of sleep,including shift work, stress, sleep apnea, etc.
A sleep ritual is a set of behaviors and a planned period of time before bed where you purposely relax and gear down.
You cannot control how well or how long they sleep, but you CAN control what you do before you go to bed. A sleep ritual helps make a good sleep more likely.
This habit is about building the behaviors to facilitate good sleep rather than aiming for a specific amount of sleep, which again, is out of your control.

Practice creating your sleep ritual everyday to improve your health, fitness, body composition, athletic performance, and recovery.
Reframe your thinking. See your sleep ritual as a set of choices and behaviors rather than an outcome. Your BEHAVIORS are what will get you to your desired outcome, not the other way around. For example, in the past you may have had the outcome of “trying to get a given amount of sleep” in mind. Instead, think of the behaviors that will lead you to this outcome! You may turn all electronics off 2 hours before bed, make a hot cup of tea, and aim for getting to bed 15 minutes earlier than normal. Those BEHAVIORS are what will allow you to succeed with this habit, not the outcome itself.
Don’t aim for perfection! Just aim for a little bit better each day.
Starting out, keep it simple and doable. Start with the basic sleep ritual, even if it’s only 10–15 minutes at first. Don't worry about the outcome. Just focus on bedtime preparation, and creating a good sleep environment consistently.
As you improve, you can SLOWLY challenge yourself. Build a solid sleep ritual first, then try to get one more hour of sleep than normal, consistently, every night.