Short answer: A comfy couch is one whose seat depth, seat height, firmness and back support match the way you actually sit, so decide first whether you sit upright or sink in. Our modular sofas cover that whole range, from the firm, upright Neptune to the soft, deep Ciello and Gaia, with free shipping that our product pages describe as fast across every US state except Hawaii, Alaska and the Virgin Islands, and removable covers you can machine wash.
Comfort is personal, so the measurements and the sit test below give you a short checklist for comparing couches on facts rather than on a photo.
On This Page
- What makes a couch comfortable?
- How do our collections differ?
- Which couch suits which body and use?
- What about sofa beds and guests?
- How do you test a couch in 10 minutes?
- What about covers, delivery and warranty?
- Our recommendation
- Explore our sofas
What makes a couch comfortable?
Six things decide how a couch feels. The first two work together, which is why we compare them side by side in our seat depth and height guide. The points below are general advice, not a product specification.
- Seat depth: the distance from the front of the seat to the front of the back cushion. If it is too deep for your legs, you must choose between leaning on the back and keeping your feet on the floor. A deeper seat suits curling up and sitting cross-legged.
- Seat height: the distance from the floor to the top of the seat cushion. A higher seat puts your feet farther from the floor even when the seat is not deep. A lower seat is closer to the ground and can feel more relaxed.
- Firmness: firm seats hold their shape and give structure for reading or working on a laptop. Soft seats let you sink in for lounging.
- Back support: height, angle and fill all matter. A back that reaches your upper back feels supportive when you lean. A lower, softer back suits lounging.
- Cushion fill: loose foam-and-fiber cushions feel plush and need fluffing every week or two, while layered-foam seats keep a steadier feel with little routine fluffing. Our guide to keeping cushions plump explains the routine.
- Arms and fabric: arm height decides whether you can lean on the side or rest your head against it. Fabric changes how the couch feels to the touch. Our sofa fabric guide explains textures and durability.
How do our collections differ?
We design each collection to give a different comfort experience instead of one feel for everyone. The seat depths below are the usable depth with the back cushions in place, as listed on each product page, and the firmness order is our own qualitative ranking from softest to firmest, not a laboratory measurement.
How do our collections differ?
| Collection | Seat depth | Seat height | How the seat feels | Back |
|---|---|---|---|---|
| Ciello Regular | 21.7 inches | 21.3 inches | Soft, cloud-like | Soft, loose cushioning; High Angled option |
| Ciello XL | 26.4 inches | 21.3 inches | Soft, cloud-like | Soft, loose cushioning; High Angled option |
| Gaia Regular | 24.2 inches | 21.3 inches | Soft, cloud-like | Soft, loose cushioning |
| Gaia XL | 25.6 inches | 21.3 inches | Soft, cloud-like | Soft, loose cushioning |
| Atmosphere | 27.3 inches with the square back, 29.3 inches with the round back | Varies by style: see the product page | Medium-firm, balanced | Balanced foam support; higher rounded backs available |
| Cassini | 26.4 inches | 17 inches | Supportive, slightly firmer than Atmosphere | More structured |
| Orian | 25.5 inches | 16.5 inches | Firm seat | Soft, fiber-filled pillows |
| Neptune | 22.4 inches | 16.9 inches | Our firmest, most structured seat | Tall, firm back; optional headrests |
Ciello and Gaia share the same basic seat construction, so their softness is very close. What separates them is depth and the back. Ciello Regular is the shallowest of the soft group, Ciello XL is the deepest, and Gaia sits between them with a taller, more upright back. Our Ciello vs Gaia guide covers that choice in detail. Since 2026, Ciello and Gaia also have an extra 1.5-inch layer of foam in the seat base for more cushioning between you and the frame.
Orian pairs a firm seat with soft back pillows, so you get support underneath and a relaxed lean behind you. Cassini has a lower seat at 17 inches, and all of its seats are the same 26.4 inches deep. For a full ranking by softness, upright sitting and lounging, read our sofa comfort guide.
Which couch suits which body and use?
Height alone does not decide fit, because leg length, torso proportions and how you like to sit matter just as much. This table is a starting point.
Which couch suits which body and use?
| Use or body | What to look for | Where to start |
|---|---|---|
| Lounging and naps | A deep, soft seat | Ciello XL or Gaia XL |
| Movie nights and TV | Depth plus a back that supports your head and shoulders | Atmosphere, or Ciello XL with high angled backs |
| Reading or working upright | A firmer, shallower seat and a tall back | Neptune, with Cassini as a lower, sculpted alternative |
| Shorter people | A lower seat, and a shallower one if your feet do not reach the floor while you lean back | Neptune, or Cassini for its lower 17-inch seat |
| Taller people | A deeper seat for longer legs | Atmosphere, Orian, Ciello XL or Gaia XL |
| Overnight guests | A sofa that opens into a bed | Neptune, Orian or Atmosphere Sleeper |
| Small spaces | The shallowest seat depths | Ciello Regular at 21.7 inches or Neptune at 22.4 inches |
| Extra back support | A higher or optionally supported back | Neptune with headrests, Ciello XL with high angled backs, or Atmosphere with higher rounded backs |
If two people of different heights share a sofa, consider a shallower sofa plus an ottoman, or a deeper sofa with pillows behind the person who prefers less depth. For a small room, our guide to sofas for small apartments compares footprints.
What about sofa beds and guests?
Our sofa beds are made from the sofa's own seat and back cushions, so the sofa you sit on is also the bed. Neptune and Orian feel firm, and Atmosphere Sleeper is softer and more cushioned. The sleeper seat cushions hold about 5.1 inches of layered foam in Neptune, 4.3 inches of foam in Orian and about 8.7 inches in Atmosphere Sleeper. Our guides to the most comfortable sofa bed for guests and to whether our sofa beds are comfortable cover the sleeping surface.
How do you test a couch in 10 minutes?
Run this test in a showroom, at a friend's home or on the sofa you already own. It is general advice.
1. Sit all the way back (1 minute). Can your back rest on the cushion while your feet are flat where you want them?
2. Sit upright, then slouch (2 minutes). Does the back meet your upper back, and does your lower back feel supported?
3. Try your usual posture (2 minutes). Curl up, cross your legs or put your feet up, whatever you do at home.
4. Stand up and sit down three times (1 minute). Notice how much effort the seat height and firmness ask of you.
5. Lean on the arm (1 minute). Is the arm a good height for your elbow or your head?
6. Sit beside someone (1 minute). Check how the seat feels when it is shared.
7. Stay put (2 minutes). Notice any pressure points at your hips, thighs or lower back.
Shopping online means you cannot sit first, so measure the seat depth of a couch you already find comfortable and compare it with the table above. We also offer free swatches on our swatches page so you can feel the fabric, and a 30-day risk-free trial: if the sofa is not the right fit we will take it back for free, as long as you keep the original boxes. If you want help narrowing the choice, you can book a free design consultation.
What about covers, delivery and warranty?
The cushion and backrest covers on our sofas are removable, and you can machine wash them on a cold, gentle cycle and air dry them. On Ciello, Gaia, Atmosphere and Cassini the covers can also be replaced. On Orian and Neptune, the arms and bases are fixed. Our product pages describe shipping as fast and free across every US state except Hawaii, Alaska and the Virgin Islands, with no order minimum, and our shipping guide explains estimates, tracking and returns. Our sofas are also covered by a five-year limited warranty.
Our recommendation
Pick by how you sit, then confirm with the sit test.
- You like to sink in and curl up: Ciello or Gaia, and the XL size if you want the deepest seat.
- You want a balance of support and lounging: Atmosphere, which suits sitting upright and stretching out.
- You prefer upright, firm support: Neptune, with optional headrests, or Cassini for a lower, sculpted look.
- You want a firm seat but a soft place to lean: Orian.
- You host overnight guests: Neptune or Orian for a firmer bed, Atmosphere Sleeper for a softer one.
If you are still unsure, our guide to choosing the right Cozey sofa compares all six collections.
Explore our sofas
Product specifications can change. Check the current dimensions on the product page before ordering.