7 Signs You Need A New Mattress

March 10, 2021 | Casper Editorial Team

How do you know when you need a new mattress? It can be hard to part with something you’ve had for a long time, that you’ve come to rely on. Your old mattress has been there to let you sleep in on weekends, comfort you when you’re sick, and give you a break after a long day.

But are you really getting the sleep you need and deserve—or have you just gotten used to the sleep you’re getting?

It’s not easy to say goodbye to mattresses, but better sleep is an important investment. A bad mattress or even an old mattress is a huge reason why people get poor sleep versus a good night’s sleep. Read on to discover the 7 signs you need a new mattress, and how Casper can provide you with a better night’s sleep.

#1 It’s Been 7 Years or More

How long do mattresses last anyways? And how often should you replace your mattress? Mattresses don’t come with an expiration date, but age should be one of the first things you consider when deciding to replace your mattress. 

Though you may want to sleep in your current mattress forever, think of the wear and tear it goes through— your nightly tossing and turning, sweating, weight gain or loss, the addition of a child, pet, or partner. Not to mention normal atmospheric effects, including:

  • Humidity
  • Temperature flux
  • Dust

After 7 – 10 years of sleep or more, it’s definitely time to replace that bed and let Casper refresh your sleeping space. The right mattress will help with getting more restful sleep and better sleep quality. 

#2 Your Mattress Sags

Check out your mattress carefully when you’re changing your sheets and washing your mattress cover. Does it look even all the way across? Mattresses can begin to sag in certain places over time, especially if you tend to sleep in one spot on the bed. Even an inch or two of sagging can wreak havoc on your spine and prevent a healthy night’s sleep. 

One way to avoid a sagging mattress, particularly if you sleep on one side of the bed, is to rotate your mattress. For tips on rotating your mattress, check out our blog on how often to rotate your mattress.

#3 You Don’t Wake Up Feeling Rested

Night after night, you’ve got your sleeping routine down. You eat a filling dinner, wash your face, maybe wind down with a cup of tea or a book, then drift off to dreamland. But no matter how long you sleep, you don’t feel refreshed when you wake up. 

This could be a sign your mattress isn’t delivering that deep sleep your body needs each night to perform its best the next day. Don’t live your life sleepy. Join the many refreshed and satisfied customers at Casper.

#4 Your Mattress is Noisy

Is your mattress starting to sound more like your dog’s favorite toy? Squeaking is a sign that the springs in your mattress are starting to break down and are becoming less supportive, less comfortable, and less, well, springy.1 

Before pinning the noise on your mattress, check your box spring or bed foundation first. These are susceptible to some erosion as well. 

#5 You Feel Achy 

You slip into bed to rest your body and mind. To alleviate aches and pains sustained throughout the day—not to gain new ones. Unless you’re working out strenuously on a daily basis or have a job that demands a lot of heavy lifting, you shouldn’t be waking up clutching your back or feeling unexpected pain in your body. 

This could be a sign that your mattress is no longer supporting you correctly. But it can help to take a look at the material of your mattress:

  • If you have a memory foam mattress, it may not bounce back to its original shape as intended and no longer conforms to your body shape.
  • If you have another mattress type like latex, hybrid, or innerspring mattress, look out for lumps, bumps, and “hammocking,” where you feel like you roll to the center of your mattress when you lay down. 

When you’re getting ready to replace your bed, consider Casper’s Wave Hybrid mattress, featuring our most advanced spine alignment technology designed for achy bodies.

#6 Your Allergies Are Flaring Up

If you start to feel sniffles coming on at night and in the morning, your older mattress could be the cause. Mattresses can collect a lot of dust and pet dander, and become a home for dust mites. If there’s enough moisture in the air, your mattress can even harbor mold and mildew.

Mattresses made of memory foam, latex, or waterbeds tend to be resistant to this kind of buildup. But in any other case, to make your mattress last as long as possible, remember to flip your mattress every 6 – 12 months (if it’s two-sided). Also, make sure you’re using and washing a mattress cover that protects against dust, bed bugs, sweat, and other types of wear and tear.

#7 You Have Trouble Sleeping

Do you find yourself tossing and turning all night? Are you sleeping too hot or too cold? Do you feel that you just can’t find the right position, or wake up in the middle of the night? These could all be signs that it’s time for a new mattress. 

Don’t let yourself slowly become accustomed to a lackluster sleep. In fact, you should be treating yourself to the luxurious technology Casper offers. We cater to every type of person, from our Nova Hybrid mattress, for those who want soothing comfort without sacrificing support, to One, the cost-efficient solution for all sleepers.

New Sleep, New You, With Casper

Now that you know how to tell when you need a new mattress, your next stop is Casper. Not only do we have mattresses for every need, but our pillows, bed frames, and bundles will help you save money and drift into dreamland.

Get Casper and discover the power of sleep. 


  1. Healthline. How Often Should You Replace Your Mattress? https://www.healthline.com/health/when-to-change-mattress#how-you-know