Two-year-old Annika and five-year-old Soren make music on the "nap swing," a popular hangout spot for kids and adults alike.

Furniture designer Pat Carson created a plethora of custom fixtures for this guest room, including a riveted aluminum Murphy bed. The best Murphy beds raise and lower easily, often requiring only one hand. This unique wall bed employs a hand-cranked wheel-and-pulley system.

Ran and her brother, Gen, read on one of the structure’s 44 continuous steps.

Hidden Storage The Murphy bed in the guest bedroom sits behind Montague’s desk, allowing the compact room to function comfortably for working and sleeping at different times. It’s made with customized millwork, Häfele bed hardware, and an Ikea mattress. When it’s open, it reveals hidden shelving. hafele.com ikea.com

The master bedroom; the painting is by Radcliffe Bailey.

Pil-low by Redesign for Prostoria Sofa beds are perhaps the quintessential transformable pieces. Unlike staid pull-outs, this fold-down model offers a more streamlined silhouette.

The snug attic in this former fisherman’s cottage in Copenhagen contains the homeowner’s platform bed, custom-designed by Jonas Bjerre-Poulsen to maximize storage and fit the unusual space.

"We wanted to keep the exterior walls uncluttered, so you can focus on the views, the light, and the air," says Rosa Garneau, the owner of a 650-square-foot co-op in New York's Chelsea neighborhood. To achieve a clean look, everything gets tucked away, including the mattress and bedding. When looking for the best Murphy bed, look for one that can accommodate basic bedding without having to remove and store it daily.

If letting your bed linens drape onto the floor or the platform bed frame just isn’t your style, keep your bedroom feeling sharp and tidy by tucking your sheets under the mattress and removing any extra blankets or fluffy comforters. A slim, white bed frame such as this one feels skeletal enough to still convey airiness.

The bed, also by Hynam, is on casters, allowing ten Hompel to move it to gaze at the stars.

Brightly colored sheets and a central pendant lamp show this tent to its best advantage.

Debbi Gibbs’s son Blake had one primary design requirement: bunk beds. Specifically, he wanted "two sets of single bunks, one on each side, with a bridge over the top." Gibbs says the Venetian-style arched bridge connecting the two beds exceeded her expectations: "I was expecting a flat platform, but our builder decided to take Blake’s request (to connect them) and made him his very own Bridge of Sighs."

A lofted sleeping pod offers a bit of privacy and helps maximize space. Beneath it is a zippy yellow bathroom.

Inspired by Scandinavian simplicity, the Rex sideboard is handcrafted by Coil and Drift in Brooklyn from cherry wood. It features slender brass pulls and soft-close hinges. The pull down door opens to reveal a mirrored niche—perfect for your at-home bar.

The low windows in the master bedroom focus the view on the backyard, not the neighbors. Christopher designed the solid poplar platform bed.

This Murphy bunk bed, the Lollipop IN model from Resource Furniture, stows away flush to the wall when not in use.

Madrid-based firm PKMN dreamed up this flexible concept for a client with a tiny home north of the city. Made up of three shelving units on track system, the All I Own House can be configured in countless ways, making space for a bedroom, kitchen, sitting area, changing room, and more. Shown here is a horizontal Murphy bed, which makes a great space-saving solution as well as a comfortable sleeping space.

A common trend among modern Murphy beds is to fold into a cabinet. By lowering the custom Murphy bed and rolling a sliding plywood door, this homeowner creates an instant guest room.

In the master bedroom, a basic platform bed and Ikea wall lights keep the attention on the ocean views afforded by the floor-to-ceiling windows.

Maja and Asa hang out in the guestroom, which also doubles as storage space with an entire wall of closets along one end.

The elegant and minimalist Loft bed by Seattle-based Chadhaus has been paired down even further in a new version that comes without drawers on the underside.

Three-year-old Ran Sugiura peers out the front door of her Tokyo home, a concept-driven yet surprisingly livable piece of architecture that her parents describe as uniquely well suited to the family’s flexible “futon lifestyle."

The master bedroom’s massive leather headboard was Thompson’s idea and design.

One of a kind pillow made of reclaimed wool kilims, fabric and trims with removable cover and hidden zipper.

Architect Bergendy Cooke, who worked for Zaha Hadid and Peter Marino before returning to her home country in 2007, is an admirer of the strong, sculptural architectural forms that appear in Japanese and Spanish architecture. Outside Queenstown, she put her ideas into practice in a home that would be the benchmark for bc+a studio, her own venture. The combination bunk bed and playhouse is a whimsical gesture the architect designed specifically for her two daughters. The spaces are organized in such a way that they can play independently or together.

In the master bedroom, a Mandal bed from Ikea is draped with a Tuuli duvet cover by Marimekko.

Another water-saving project in Menlo Park includes a rock bed with succulents.

Grey Matter pillow by Nathalie Du Pasquier for Wrong for HAY. Sebastian Wrong’s new collection for the Danish design giant includes textiles from the archives of one of the Memphis group’s founding members.

Tip seven: Getting Serious "If this is a man cave or a woman cave, there are further things you can do," Bush says. "One is to buy already fabricated fiberglass absorber panels in the cloth color of your choice. I would stick with four-inch-thick or thicker panels as the thin ones, like thin foam, just absorb highs and leave you with an overly mid-rangy room. If you are a craftsperson, you can make these types of panels by ordering Owens Corning #703 in four-inch thickness or in a two-inch and glue two layers together to get four inches. I use 3M spray 77 glue but others might work as well. This will need covering so I recommend a thin layer of polyester batting and your choice of upholstery fabric to cover. This can be inserted into frames or glued to a backer board to hang. Specially made diffusors work well, but tend to be very spendy. Let your budget be a guide here and remember that plain old bushy plants work well and spruce up a cave well." "I would tend to stay away from the acoustic foams available unless they are at least four inces thick," Bush says. "Thicker is better. A thin layer of acoustic foam used as a cosmetic treatment over a four-inch-thick Owens Corning #703 fiberglass panel is a nice finish and works very well. Spend some time listening and let your ears be your guide."

Pillow by Joel Karlsson and Krook&Tjäder for Karl Andersson & Söner $255 each Acoustic wall tiles, made of recycled fabric and PET bottles and covered in wool, are available in eight different colors, with or without a button.

The Virtue Pillow by Mary features positive messages in Icelandic. Sayings include: patience, honesty, faith, positivity, integrity, and friendship. According to the designer, the virtues are a reminder of the intangible things that matter in life. Available in three colors, the pillows are made from undyed Icelandic wool.

The spring 2015 ollection also includes six new Fauna pillows, which feature animals inspired by 19th-century illustrations. Head to areaware.com for more information on how to shop the new releases.

A Design Within Reach bed is steps away from a Second Floor sink by Duravit that’s outfitted with an Essence Grohe faucet. Benjamin Moore’s Templeton Gray is painted on the master bathroom’s wood paneling.

In his home office, Wardell runs his online art gallery Chester's Blacksmith Shop and researches his next project: opening a boutique hotel in New Zealand. His nephew peeks down from the "napping nook" secreted above the office. The desk is from Room & Board.

Made from Tasmanian oak, the bunk beds, covered in Kivet duvets by Marimekko, can accommodate four.