Buying a mattress should be straightforward, but the reality is that many people end up with purchases they regret. The mattress industry doesn't always make things easy—confusing terminology, aggressive sales tactics, and overwhelming choices can lead even savvy shoppers astray. By understanding the most common mistakes, you can avoid them and find a mattress that truly meets your needs.

Mistake #1: Rushing the Decision

Mattresses are major purchases that affect your health and comfort for years. Yet many buyers spend less time researching a mattress than they would a new phone. The pressure of a sales environment or the excitement of finally replacing an old mattress can lead to hasty decisions.

Why It's a Problem

A few minutes lying on a mattress in a showroom tells you almost nothing about how it will feel after a week of use. Comfort perception changes with time—what feels great initially may become uncomfortable, and what feels unusual at first may become perfect once your body adjusts.

âś“ Better Approach

Research before you shop. Understand what type of mattress suits your sleep position and preferences. When testing, spend at least 10-15 minutes on any mattress you're seriously considering. Better yet, buy from a company with a genuine sleep trial.

Mistake #2: Ignoring the Trial Period

Many shoppers don't realise that most reputable mattress companies now offer trial periods of 100 nights or more. Others know about trials but don't factor them into their decision-making process.

Why It's a Problem

A trial period lets you test a mattress in your actual sleep environment over weeks, not minutes. This is infinitely more reliable than any showroom test. If you buy from a retailer without a trial period and the mattress doesn't work out, you're stuck.

What to Look For

  • Trial length: 100 nights is standard; some offer more
  • Return process: How easy is it to return? Free pickup or do you handle shipping?
  • Refund policy: Full refund or exchange only? Any restocking fees?
  • Mandatory break-in period: Some companies require you to try the mattress for 30 days before allowing returns

Mistake #3: Focusing Only on Price

Both extremes cause problems—buying the cheapest option available or assuming that the most expensive mattress must be the best.

The Cheap Mattress Trap

Very inexpensive mattresses often use low-density foams and cheaper materials that break down quickly. A $200 mattress that needs replacement after two years costs more in the long run than a $600 mattress that lasts eight years. Budget mattresses also frequently lack the support and comfort features that contribute to quality sleep.

The Luxury Fallacy

On the other end, the most expensive mattresses aren't necessarily better for you personally. Premium prices often reflect brand positioning, marketing costs, and showroom overhead rather than proportionally better materials. A $3,000 mattress isn't necessarily three times better than a $1,000 mattress.

âś“ Smart Pricing Approach
  • Set a budget based on what you can reasonably afford
  • For king singles, $500-$1,200 typically offers good value
  • Compare specifications, not just prices
  • Consider cost per night over the mattress's expected lifespan

Mistake #4: Buying Based on Brand Name Alone

Familiar brand names provide comfort and perceived reliability, but brand recognition doesn't guarantee the best product for your needs. Many household-name mattress brands charge premiums primarily for their reputation rather than superior quality.

The Reality

The mattress industry has changed dramatically. Direct-to-consumer brands that bypass traditional retail often offer comparable or superior quality at lower prices. Meanwhile, some established brands have reduced material quality while maintaining prices. Judge mattresses on their merits—materials, construction, reviews, and trial policies—not on brand history.

Mistake #5: Not Considering Your Sleep Position

Many shoppers choose mattresses based on what feels nice during a brief test without considering how they actually sleep. Side sleepers, back sleepers, and stomach sleepers have fundamentally different support needs.

⚠️ Position Matters

A mattress that's perfect for a back sleeper may cause hip pain for a side sleeper. Before shopping, understand your primary sleep position and what firmness level typically works best for it.

Quick Position Guide

  • Side sleepers: Softer mattresses (4-6 firmness) for pressure relief
  • Back sleepers: Medium to medium-firm (5-7) for lumbar support
  • Stomach sleepers: Firmer surfaces (6-8) to prevent pelvis sinking
  • Combination sleepers: Medium firmness (5-6) for versatility

Mistake #6: Ignoring Body Weight

Firmness is relative to body weight. A mattress that feels medium to someone weighing 60kg will feel softer to someone weighing 100kg. Reviews and firmness ratings assume average weight, which may not match your experience.

Adjusting for Weight

  • Lighter sleepers (under 60kg): May find most mattresses firmer than advertised; consider softer options
  • Average weight (60-100kg): Standard firmness ratings typically apply
  • Heavier sleepers (over 100kg): Need firmer mattresses for adequate support; also prioritise durability

Mistake #7: Falling for Sales Tactics

Traditional mattress retail is notorious for high-pressure sales tactics. Common techniques include artificial urgency, complicated discounting, and steering you toward higher-margin products.

Tactics to Watch For

  • "Sale ends today": Mattress sales seem perpetual; there will always be another
  • Inflated original prices: A "50% off" sale means little if the original price was artificially high
  • Exclusive showroom models: Retailers sometimes use unique model names for the same mattress, making comparison shopping impossible
  • Financing with hidden terms: Understand interest rates and penalties before signing
đź’ˇ Pro Tip

Never feel pressured to buy during your first visit. A good mattress purchase is worth sleeping on—metaphorically. Tell salespeople you need time to decide and leave if pressure continues.

Mistake #8: Neglecting to Read the Warranty

Warranties sound reassuring, but the details matter. Many buyers assume warranties cover more than they actually do and are disappointed when claims are denied.

What Warranties Typically Cover

  • Manufacturing defects
  • Sagging beyond a specified depth (often 3-4cm)
  • Broken or protruding coils

What Warranties Usually Don't Cover

  • Normal wear and comfort preferences
  • Stains (often void the warranty entirely)
  • Damage from improper support or handling
  • Body impressions below the specified depth

A 15-year warranty that only covers defects and deep sagging may be less valuable than a 10-year warranty with broader coverage. Read the fine print.

Mistake #9: Skipping Reviews and Research

With endless information available, buying a mattress blind is unnecessary. Yet many shoppers rely solely on in-store impressions or marketing materials rather than seeking independent information.

Effective Research Strategies

  • Read reviews from multiple sources, not just the retailer's website
  • Look for reviews from people with similar body types and sleep positions
  • Pay attention to complaints about durability—these often only emerge in reviews after months of use
  • Be skeptical of reviews that seem overly promotional

Mistake #10: Forgetting About the Base

The best mattress won't perform properly on an inadequate foundation. An old, worn box spring or a bed frame with broken slats can cause premature sagging and void your warranty.

Foundation Considerations

  • Check slat spacing—most manufacturers recommend no more than 7cm gaps
  • Ensure the foundation is designed for your mattress type
  • If using slats, consider whether additional centre support is needed
  • Some mattresses require specific foundation types; check manufacturer recommendations

Making a Smart Purchase

Avoiding these mistakes doesn't guarantee a perfect mattress experience—personal comfort is too subjective for guarantees. But you'll dramatically improve your odds of satisfaction by approaching the purchase thoughtfully, using trial periods, and making decisions based on research rather than sales pressure.

Remember that a mattress is an investment in your health. The hours spent researching pay dividends in years of better sleep.

EW

Emma Wilson

Content Director

Emma specialises in consumer education, helping readers navigate complex purchases and avoid common pitfalls.