Mattress Firmness Guide

Understanding Firmness Levels

When shopping for a mattress, you’ll see terms like Ultra-Plush, Medium-Firm, and Extra-Firm. These comfort labels are only general indicators, what feels firm to one person may feel medium to another. That’s why the best way to choose firmness is to try the mattress in person and focus on how your body feels, not just what the tag says.

Your In-Store Testing Checklist

Take your time

Spend at least 10 minutes
lying on each model.

Test with your partner

If you share a bed, evaluate comfort and motion transfer together in real-time.

Try different positions

Back, side, and stomach. Your mattress should support each naturally.

Test the right size

Feel can vary slightly between twin, queen, and king sizes due to construction.

Salesperson explaining mattress features to a couple in a mattress showroom, showcasing comfort options and encouraging in-person testing for optimal sleep solutions.

The Retail Advantage

A knowledgeable salesperson and a retailer you trust make all the difference in finding the right sleep solution.

When you compare quality, technology, and comfort side by side in a showroom environment, you’ll see exactly why Sleeptronic® stands out from the competition.

What to Expect: The Break-In Period

DAY 1

Initial feel

New mattresses often feel firmer than the store model you tested. This happens because floor samples soften over time as many shoppers try them out.

DAYS 1-90

Adaptation & Break-In

Over the first 90 days, the mattress will break in and adapt to your body. Minor impressions are normal
signs the comfort layers are
performing as designed.

YEARS 8-10

Long-Term Comfort

Optimal support and comfort lasts 8-10 years before replacement is recommended.