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2026年ベスト家具・インテリア
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Side sleepers generally prefer medium-soft firmness; back and stomach sleepers prefer medium-firm.
Always use the trial period — most online brands offer 100 nights. Showroom feel differs from sleeping at home.
Memory foam excels at pressure relief; hybrid mattresses combine foam comfort with spring breathability.
A mattress is used 8 hours daily for 7–10 years — the cost per night of a premium mattress is often under €0.50.
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家具・インテリアを見る →よくある質問
How often should I replace my mattress?
Every 7–10 years for most mattresses. Replace sooner if you notice visible sagging, wake up with back pain, or consistently sleep better elsewhere.
Do I need a box spring?
A solid slatted frame (slats no more than 6cm apart) is sufficient for modern mattresses. Never place memory foam or hybrid mattresses directly on the floor — they need airflow.