You may find mattresses that are two decades old in use in a rarely used guest room, but that doesn’t mean you should use it that long. Nor do you want to waste money and replace a mattress based on an incorrect assumption of how long it can last. Here are 5 signs that you need a new mattress. We’ll also explain why replacing the mattress in these cases is better than the alternatives.

Good Night, Sleep Tight, Don’t Let the Bedbugs Bite

If you have bedbugs biting you at night, identifiable by the massive welts they leave compared to fleas, you need to replace the mattress. Chemical treatment is barely safe. Wrapping your existing mattress in plastic won’t prevent those in the floor and bed boards from reaching you. Replacing the mattress and bed springs is the best solution because you are unlikely to get every bug much less all of the eggs. Just ensure that you have the floors thoroughly vacuumed and treated before you put in your new bed.


If you’ve got dust mites, mold or other things you don’t want to be exposed to all night infesting the mattress, you should replace the mattress. It is easier to replace the mattress than try to clean it and hope it doesn’t develop worse problems as a result of the treatment. Covering an infested mattress with a cover doesn’t really solve the issue, either, since you could still have that stuff growing in the mattress and potentially creating problems when you move it.

A Little Saggy

Regardless of the age of your bed, a bed that lets you sink into it like a bean bag chair isn’t offering you enough support. It is time to replace it. The hard part is finding one that is comfortable, but if a mattress has good reviews on, you know it is good. You also know it is time to replace a mattress when it lets you adjust the firmness but you just can’t get it firm enough, whether due to a defective pump, compressed inner layer or air leaks. If it has a visible sag, it needs to be replaced. If you feel like getting into the bed is like getting into a hammock, it needs to be replaced.

An Uncomfortable Mess

If you’re waking with aches and pains you didn’t have a few years ago, don’t just assume that it is old age. If your aching neck gets better through the day, that’s a sign it is caused by your mattress, not time. While a good mattress won’t prevent a morning shuffle, it will prevent pain in the neck, shoulders and other stress points. You know it is your mattress if you’re better rested and have fewer muscle aches when you sleep on the couch. In general, you’ll want to replace a mattress if you cannot sleep comfortably on it or feel worse when you wake up than when you went to bed.


A mattress that creaks and squeaks most likely has deteriorating springs. If your mattress sounds like you’re jumping on it when you simply turn over, it is time to get a new mattress. You also want to replace the mattress if you’re getting poked and prodded by broken springs, since the problem is only going to get worse over time.

If you have bedbugs, if your mattress makes excessive noise, is obviously saggy or your bed doesn’t feel like it supports you enough at night, you should replace it immediately. You deserve a good night’s sleep, and sleeping on a poor mattress could not only lead to lack of sleep, but more severe health complications later.


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