01How to Care for Your New Mattress: Setup, Protection & Maintenance

A good mattress is a significant investment — most quality mattresses run anywhere from a few hundred to several thousand dollars, and a well-cared-for one can last a decade or more. The first few weeks after delivery are when most of the habits that protect that investment get established. Here's exactly what to do.

03Step 1: Proper Setup

Getting the foundation right from the start matters more than most people realize. An improperly supported mattress can develop problems — sagging, uneven wear, structural damage — that may void your warranty.

Foundation and Frame Requirements

  • Most modern mattresses require a solid surface or slatted base with slats no more than 3 inches apart. Wider gaps don't provide adequate support.
  • Check your mattress's warranty documentation for the specific foundation requirements — they vary by brand and mattress type.
  • Old box springs often lack the support modern mattresses need. If you're replacing just the mattress, it's worth considering whether your foundation should be replaced too.
  • Make sure your bed frame is sturdy and level. Center legs or support bars are important for queen and king sizes.

If LA Mattress delivered and set up your mattress, our team will have confirmed these basics. If you're unsure, contact us or check your warranty documentation.

04Step 2: The Break-In Period

Let It Air Out First

New mattresses often arrive with a distinct smell — a slight chemical or foam odor from the manufacturing and packaging process. This is normal and not harmful, but it's worth airing out before covering the mattress.

  • Remove all packaging and let the mattress breathe for at least a few hours before putting on a mattress protector and sheets
  • Open windows if possible to bring in fresh air
  • The smell typically dissipates within a few days to a week

Give It Time to Break In

A new mattress often feels different than it will in 30–60 days. The materials — whether foam, coils, or a hybrid — need time to adapt to your body weight and sleeping position. If a mattress feels slightly firmer than the floor model you tried in the store, this is normal.

Most comfort issues that appear in the first 30 days resolve on their own. If discomfort persists beyond that, check your warranty and comfort guarantee terms.

LA Mattress comfort guarantee: If you're not comfortable, you can exchange your mattress under our 120-night comfort guarantee. You shouldn't have to live with a mattress that isn't working for you.

05Step 3: Use a Mattress Protector

This is the single most important maintenance step you can take. A good mattress protector:

  • Prevents staining — fluids, sweat, and spills that reach the mattress can void your warranty. Most warranties explicitly require protection against staining.
  • Blocks allergens — dust mites, pet dander, and skin cells accumulate in mattresses over time. A protector creates a barrier.
  • Extends mattress life — keeping the mattress clean and dry prevents material breakdown and odor
  • Regulates temperature — quality mattress protectors can improve airflow and help the mattress sleep cooler

What to Look For in a Mattress Protector

Feature Why It Matters
Waterproof Essential for warranty protection; guards against spills and sweat
Breathable material Prevents heat retention; look for cotton or bamboo-based covers
Machine washable You need to be able to clean it regularly
Fitted style Stays in place without bunching
Hypoallergenic Important for allergy or asthma sufferers

Put the protector on before any sheets. Wash it every few months or immediately after spills.

06Step 4: Cleaning Your Mattress

Even with a protector, your mattress benefits from periodic cleaning.

Routine Maintenance (Every 3–6 Months)

  • Strip the bed, remove the protector, and vacuum the mattress surface with an upholstery attachment
  • Pay attention to seams and edges where dust and debris collect
  • Allow the mattress to air out for a few hours if possible before remaking the bed

Spot Cleaning (As Needed)

  • Blot (never rub) liquid spills immediately
  • Use a mild solution of cold water and a small amount of dish soap or enzyme-based cleaner
  • Apply sparingly — you want to clean the surface, not saturate the foam or padding
  • Let it dry completely before covering. Use a fan to speed drying.
  • Never use harsh chemicals, bleach, or dry-cleaning fluids. These can damage materials and void your warranty.

Deodorizing

  • Sprinkle baking soda over the mattress surface, let it sit for a few hours, then vacuum thoroughly
  • Sunlight and fresh air are also effective deodorizers if you can move the mattress near a window

07Step 5: Rotate (and Sometimes Flip) Your Mattress

Rotation

Most mattresses should be rotated 180 degrees (head to foot) every 3–6 months. Rotation distributes wear more evenly across the mattress surface and prevents body impressions from forming in just one spot.

Flipping

Most modern mattresses are one-sided and should not be flipped — the bottom layer is a support base, not a sleep surface. Check your mattress documentation to confirm. If your mattress is double-sided, the manufacturer will note it specifically.

08Step 6: Know Your Warranty

Most mattress warranties cover defects in materials and workmanship — things like coil failures, foam breakdown beyond normal expectations, or stitching issues. They do not cover comfort preferences, normal softening over time, or damage from improper use.

What Typically Voids a Warranty

  • Staining or soiling (another reason a mattress protector is essential)
  • Improper foundation or support
  • Physical damage from abuse (bending, jumping, cutting)
  • Removing the law tag before it's needed for a claim

About the Law Tag

You've probably seen the "Do not remove under penalty of law" tag. The law actually only prohibits manufacturers and retailers from removing it before sale. You as the consumer can remove it. But there's a practical reason to leave it in place: the law tag and any sewn-on labels contain product identification information that may be required if you ever file a warranty claim.

What Warranties Don't Cover

Comfort is personal, and it's not warranted. A mattress that feels different from what you expected, or one that you've grown out of in terms of support preference, is a different issue than a manufacturing defect. That's why LA Mattress offers a 120-night comfort guarantee — if it's just not the right fit, you have options.

09Extending Mattress Lifespan: Quick Reference

Action Frequency Why It Matters
Use a mattress protector Always Prevents staining, allergens, and material breakdown
Vacuum the mattress Every 3–6 months Removes dust, skin cells, allergens
Rotate 180° Every 3–6 months Distributes wear evenly
Wash protector Every 1–3 months Keeps sleeping surface clean and hygienic
Check foundation Annually Ensures proper support is maintained
Air out mattress When washing bedding Reduces moisture buildup and odor

10Frequently Asked Questions

How long does a new mattress off-gassing smell last?

Usually a few days to a week with good ventilation. Memory foam and latex mattresses tend to have more noticeable off-gassing than innerspring mattresses. Airing the room and using fresh air accelerates the process.

Do I need a specific foundation for my mattress?

Yes. Check your mattress warranty documentation — it will specify what foundation types are acceptable. Most modern mattresses require a solid platform, a bunkie board, or slats with gaps of 3 inches or less. Using an unsupported or incompatible foundation can void the warranty.

How often should I replace my mattress?

Most quality mattresses last 7–10 years with proper care. Signs it's time to replace: visible sagging or body impressions deeper than 1–1.5 inches, waking up with pain that wasn't there before, noticeably better sleep when you're away from home.

Is jumping on a mattress really that bad?

Yes. Concentrated impact stress damages internal components — coil springs, foam layers, and structural materials. It can also compromise the mattress's edge support. Most warranties exclude damage from improper use, which would include jumping.

Can I use a regular mattress protector, or does it need to be a special one?

A quality fitted waterproof protector is what you need. It doesn't need to be the most expensive option — just waterproof, breathable, and machine washable. Avoid cheap plastic covers that crinkle and trap heat; they make the mattress uncomfortable and may affect warranty compliance.

A little care goes a long way. Set up the mattress correctly, use a protector from day one, rotate it seasonally, and clean it periodically. These habits take minimal effort and can add years to your mattress's life. If you have questions about caring for a specific mattress you purchased from us, reach out at any of our LA locations or through our contact page.