Sofas are the "second bed" of home life. Whether it’s the whole family gathered for a weekend show, unwinding after late work, or kids playing nearby while you sit casually, its comfort directly impacts daily happiness. Yet the most common question remains: "Is this sofa truly comfortable for long sits? Will it sag or cause back pain over time?" Today, we unpack the key details behind "comfort" from daily life, helping you find a choice that stays "more comfortable the longer you sit."

1. Seat Cushions: Support Matters More Than Softness

Many assume "softer is better," but overly soft cushions often leave the lower back unsupported, leading to soreness. The ideal cushion balances "resilience" and "support."

Classic designs often use a dual-layer structure: a memory foam top layer conforms to hip curves, dispersing pressure; a high-resilience foam base acts as a "support foundation," rebounding quickly after compression to avoid sagging. This design is especially friendly for remote workers—sitting all day to handle tasks, your lower back maintains its natural curve, reducing fatigue.

Cushion thickness also matters. Considering daily habits like cross-legged sitting or stretching legs, a cushion that’s too thin (<15cm) leaves thighs dangling; too thick (>25cm) shifts your center of gravity, making it hard to stand. An 18-22cm thickness wraps the legs without hindering movement—aligning with most people’s sitting preferences.

2. Fabric: Skin-Friendly Is Basic—"Breathability" Defines Long-Term Comfort

Home climates affect fabric comfort. Dry-region users prioritize "anti-static," while humid-area users focus on "breathability."

  • Touch: Brushed cotton blends or micro-fleece tech fabrics are ideal. The former feels cloud-soft; the latter offers warmth—no winter chill, no summer stickiness. User feedback: "Our old smooth polyester sofa made kids slip barefoot; the brushed version now even invites our pet to nap."

  • Breathability: In summer, micro-ventilation matters. Quality tech fleece or linen blends have over 200 micro-air holes per square inch, quickly releasing body heat. Tested at 35°C, these fabrics stay 3-5°C cooler than regular fleece—no heat rashes even after long sits.

3. Backrest & Seat Depth: Ergonomics for Casual Home Postures

Home sitting is relaxed: some half-lounge to binge shows, others sit upright. Thus, backrest angles and seat depth must adapt.

  • Backrest Angle: 105°-115° is the most relaxed (like leaning against a headboard). Our design fixes it at 110°—supporting the lower back when reclining without tilting too far.

  • Seat Depth: For casual "curled-up" or "stretched-out" sitting, seat depth (backrest to cushion front) should be 68-76cm. Too shallow (<65cm) leaves thighs dangling; too deep (>80cm) bumps knees. A 72cm depth works for most—even at 185cm, knees bend naturally without hitting the front edge.

Conclusion: Sofa comfort isn’t about "ultra-soft" labels. It’s about cushion support, fabric breathability, and size fitting daily postures. When you sit, if your lower back feels supported, thighs relaxed, and back snug but not tight—this sofa is your true "home comfort zone."