After spending weeks switching between the Green Soul Monster and The Sleep Company’s SmartGRID chair, I figured it’s time someone laid out the real differences minus the marketing fluff. If you’re hunting for an office chair that doesn’t leave your back screaming after 5 PM, both these brands make a solid case. But they go about comfort in completely different ways.
Green Soul leans heavily on its high-back mesh design with lots of lumbar tweaks. It feels solid, supportive, and gives you that classic "ergonomic" setup right out of the box. On the flip side, The Sleep Company chair feels like sitting on a cushion designed by memory foam nerds it’s soft, springy, and strangely addictive. That SmartGRID seat really does flex with your weight.
Thing is, comfort isn’t just about softness. It’s also about posture, airflow, recline angles, and how your body holds up after long stretches. So I looked at everything: from build and design to support, adjustments, and value for money. If you’re stuck between the two, this comparison should help you figure out what really suits your body and your budget.
Comfort & Ergonomics Compared: What Really Matters During Long Work Hours
Build & First Impressions: Mesh vs. SmartGRID
Green Soul’s mesh-back build feels ready for business minimal, sturdy. It gives off that classic ergonomic vibe from the get-go. The Sleep Company chair, on the other hand, has a more lounge-like feel with its thicker frame and cushioned seat. Visually, it's bulkier, but that SmartGRID seat instantly sets a different tone more relaxed, less formal.
Seat Comfort: Firm Support or Cushioned Sink-In?
This is where the contrast is sharp. Green Soul offers a firmer, upright base that encourages good posture. It’s supportive but not plush. The Sleep Company chair is noticeably softer; you sink in a little, but not in a bad way. The SmartGRID seat feels like it adapts to you, which can be a game-changer for people who dislike rigid chairs.
Back Support & Ergonomics: Which One’s Spine-Friendly?
Green Soul wins when it comes to structured back support. The lumbar support, adjustable headrest, and mesh tension combine well for people dealing with back issues. The Sleep Company’s design focuses more on pressure relief, but the lack of mesh may reduce breathability in the backrest area. Still, both do a decent job if you sit correctly.
Adjustability & Customization: Who Offers More Control?
If you love tweaking your chair’s position, tilt, or height to the last millimeter, Green Soul has the upper hand. From the armrest angles to the seat height, you get more granular control. The Sleep Company chair has basic adjustments, but not as many levers or fine-tuned features. It’s more “set it and forget it” than fully adjustable.
Breathability & Long Hours: Which Chair Feels Better Over Time?
Mesh does make a difference. On longer days especially in humid weather Green Soul’s airflow makes sitting a bit more bearable. The SmartGRID seat isn’t bad, but it can trap more heat, especially if you’re wearing thick clothes. Comfort-wise, both hold up well for hours, but if sweat and stickiness bother you, Green Soul pulls slightly ahead.
