<h6>KEY DETAILS</h6> <ul> <li>Interior metal frame.</li> <li>Pocket spring mattress surrounded by a foam casing and fiber fill.</li> <li>High-gauge sinuous springs provide cushion support.</li> <li>Seat cushion has fiber-wrapped high-density polyurethane foam.</li> <li>Seat firmness: Soft. On a scale from 1 to 5 (5 being firmest), we rate it a 1.</li> <li>Back cushions are fiber filled.</li> <li>Seat cushion is attached; loose back cushions.</li> <li>Folds down to reveal slightly larger than Full-size sleep area.</li> <li>To convert into sleeper, pull out the seat and push the back down.</li> <li>In order to fully cover the sleeping space, a Full-sized fitted sheet is recommended (sold separately).</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>Made in China.</li> </ul>