On an average, a person spends a third of his lifetime in bed and on close inspection that we spend more time with our pillow then with friends, in car or in office.
So, how often should you replace your pillow？
It really depends on the material of your pillows, but basically a rule of thumb is to change them up every one to two years to ensure good hygiene and sleep health.
Memory foam pillows should be replaced every twelve months. This material moulds to fit the shape of your head and neck, meaning that it is susceptible to sagging and becoming lumpy over time.
Down pillows should also be replaced once per year as they are also susceptible to becoming lumpy.
Latex is more durable and less absorbent than both memory foam and down pillows, meaning you can replace these less frequently. Once every two years is a good rule of thumb for latex pillows.
Feather-based pillows are one of the most common and affordable pillows available. They show the signs of pillow ageing sooner than other types of pillows, so should be replaced at least once every year
Signs you should replace your pillow
You’ll know it’s time to replace your pillow if you notice any of the following:
It Smells Bad
If you smell an odor when you put head down to sleep, then it's time get a new pillow. Smell could be a sign that body odor and bacteria have seeped through the surface of the pillow.
There are noticeable lumps in the foam or filler materials
There are noticeable, permanent stains from body sweat and oil
You wake up with aches and pains, particularly in your neck or shoulders
You wake up tired (due to the above aches and pains interrupting your sleep)
You wake up with headaches or are developing tension headaches
You wake up sneezing from the dust mites
You constantly have to re fluff your pillow to get comfortable (feather pillows only)
If you fold your pillow in half, it stays that way instead of expanding back out (feather pillows only)