In one sentence, describe what the following article is about:

If your room is not clean it actually isn't too easy to sleep in. Since everyone feels satisfaction out of a clean room, don't you want to go to bed satisfied and relaxed? A comfortable bed can help you get to sleep faster. Invest in some good pillows, a good comforter, and comfortable sheets. If your mattress is old, then you might consider replacing it.  A good comforter is one that's comfortable for you. Everyone has different preferences. You may want to change your bedding with the seasons. For example, during winter, you may switch to cotton or jersey sheets, and add an extra blanket. You could also keep warm with a down blanket.  During summer, you might choose lighter weight options like cotton with a thread count between 250-500 or linen. Switch out the down comforter for a light-weight cotton alternative. If a dog, child, or partner is hogging the bed, make them move. You deserve your space. Light can trick your brain into staying awake. Turn off the lights and avoid using a nightlight. Block out light from outside with heavy blinds or curtains. If you use an alarm clock, turn it around so that it doesn't face you.  Don't sleep with the television on, as the flickering light will disrupt your sleep. If you get up during the night, keep the lights dim. Excessive noise can make it hard to go to sleep. Additionally, sudden or changing noises can wake you up. The best way to deal with noise is to use a white-noise machine, fan, or portable air purifier to create a consistent noise environment that is appropriate for sleeping.  You can invest in a white noise machine that offers different types of sounds that encourage sleep. However, a fan or a portable air purifier is often cheaper. You could also wear ear plugs. Keeping your bedroom cool helps you fall asleep more easily, as your body naturally cools down before sleep. How cool the room should be can vary depending on the individual, so choose a temperature that feels cool to you. Generally speaking, you'll be able to sleep best somewhere between 60 and 68 °F (16 and 20 °C).

Summary:
Keep your room clean. Make your bed comfortable. Make sure your room is completely dark. Block out noise. Adjust the thermostat to a cool temperature.