How Long Should a Mattress Actually Last? The Honest Answer from a Sleep Specialist.

This is probably the question we get asked more than any other in the store: "How long should my mattress last?" And the answer is never as simple as people want it to be.

The short version? Most quality mattresses will give you 7 to 10 years of proper support. But that number changes depending on the mattress type, how you use it, and how well you look after it.

The signs your mattress is done

Forget what year you bought it — your body will tell you when it's time. Here's what to watch for:

You wake up stiff or sore in the morning, especially in your lower back or shoulders. You used to sleep fine on this mattress, but now it takes you longer to get comfortable. You can feel a dip or indent where you normally lie. You sleep better in hotel rooms or at other people's houses than in your own bed.

If any of those sound familiar, your mattress is probably past its best. The springs or foam have lost the ability to push back against your body weight, and your spine is sagging into positions it shouldn't be in.

Does the type of mattress matter?

Absolutely. Innerspring mattresses with individual pocket springs tend to hold their shape longer than continuous coil systems. Memory foam can soften over time, especially in warmer climates. Our hybrid mattresses — like the Therapedic range — combine pocket springs with foam comfort layers and tend to offer the best of both worlds in terms of longevity.

The boxed mattresses we sell in our Mattress2Go range are designed to give great comfort at an everyday low price. They're perfect for guest rooms, kids' bedrooms, or anyone on a budget. But for your main bed — the one you sleep on every night — we usually recommend investing in a mid-range to premium mattress that's going to hold up over the long haul.

How to make your mattress last longer

Use a mattress protector from day one. Not just for spills — a good waterproof protector keeps moisture, dust mites, and dead skin out of the mattress layers. We sell protectors from $49 and honestly, it's the best $49 you'll ever spend on your bed.

Rotate your mattress head-to-foot every three months. Don't flip it unless the manufacturer says to — most modern mattresses are one-sided.

Use a proper bed base. A sagging or broken slat base will destroy even a great mattress. If your base is old, consider replacing it at the same time as the mattress.

When you're ready

Come and see us at 35 Altin Street, Griffith. Our sleep specialists will match you with a mattress based on how you actually sleep — not just what's on sale this week. We carry everything from $249 boxed mattresses to premium models over $6,000, and every single one can be tested in store before you commit.

Sources & References

The Sleep Foundation recommends replacing mattresses every 6-8 years depending on material type and usage (Sleep Foundation, 2025). Pocket spring mattresses typically outlast continuous coil systems by 2-3 years due to independent coil movement reducing wear. Mattress protectors can extend mattress lifespan by up to 30% by preventing moisture and allergen penetration (Good Housekeeping Institute, 2024). Written by Jess Curry, Sales Manager at Sleepdoctor Griffith.