Mattress Firmness Guide (2026)
Choosing the right mattress firmness directly impacts your sleep quality and spinal alignment.
Key Considerations
Mattress firmness is rated on a scale of 1-10, with most sleepers finding comfort between 4 and 7.
- Side sleepers benefit from medium-soft (4-5) to relieve shoulder and hip pressure
- Back sleepers need medium-firm (6-7) for lumbar support
- Stomach sleepers require firm (7-8) to prevent lower back sagging
- Body weight matters: heavier sleepers need firmer mattresses for adequate support
Practical Tips
Test mattresses for at least 15 minutes in your typical sleep position before deciding.
Final Thoughts
Most online mattress brands offer 100-night trial periods. Take advantage of these to ensure your firmness choice works.