<p>Harmony is our most comfortable sectional ever, thanks to its deep seat, plush cushions and go-anywhere lumbar and throw pillows. This modular version creates your dream sectional today but can be used flexibly down the road. Each has reinforced joinery and is assembled in the USA.</p> <h6>KEY DETAILS</h6> <ul> <li>Engineered hardwood frame with mortise & tenon joinery.</li> <li>All wood is kiln dried for added durability.</li> <li>Lumbar pillows and throw pillows included.</li> <li>High-gauge sinuous springs provide cushion support.</li> <li>Seat cushions: Fiber-wrapped high-density polyurethane foam.</li> <li>Seat firmness: Soft. On a scale of 1 to 5 (5 being the firmest), it's a 1.</li> <li>Back cushions: 50% polyester fiber, 45% duck feather and 5% duck down in down-proof ticking.</li> <li>Loose, reversible cushions with zip-off covers.</li> <li>Sleeper sofa folds out to reveal a Queen-sized mattress.</li> <li>Gel mattress features a 2-layer construction of high-density foam and gel-infused foam.</li> <li>It’s designed to contour to the body and wick away body heat.</li> <li>Mattress ticking has an ultra-soft, breathable knit.</li> <li>To avoid damaging the frame, do not fold the mattress into the sofa with sheets or blankets on it.</li> <li>Mattress has a platform-style support to eliminate the need for bars or springs.</li> <li>Sectional pieces attach via alligator clips (included).</li> <li>Modular pieces are easy to move and can be used standalone or added on to later.</li> <li>To see the full assortment of potential add-on pieces, see the <a href="https://www.westelm.com/products/modular-harmony-sectional-modular-h6266" rel="{'dim': {'width': 800, 'height': 600}}" class="popup">Harmony Modular Collection page.</a></li> <li>Make sure it fits! See our guide on <a href="http://www.westelm.com/shop/design-lab/measuring-delivery-design-lab" target="_blank">measuring for delivery</a>.</li> <li>Assembled in the USA.</li> </ul>