For other uses see Bed (disambiguation). This article needs references that appear in reliable third-party publications. Primary sources or sources affiliated with the subject are generally not sufficient for a Wikipedia article. Please add more appropriate citations from reliable sources. (December 2008) "The bed" by Toulouse Lautrec (1893)

A bed ( listen (helpinfo)) is a large piece of furniture (or a location) used as a place to sleep and as a primary place for relaxation.

Most modern beds consist of a mattress on a bed frame with the mattress resting either on a solid base often wooden slats or a sprung base. In North America many beds include a box spring inner-sprung base1 a large mattress-sized box containing wood and springs that provide additional support and suspension for the mattress.

Most beds have a headboard for resting against with others also having side rails and footboards (or "footers").

"Headboard only" beds often incorporate a dust ruffle bed skirt or valance sheet to hide the bed frame.

For greater head support most people use a pillow placed at the top of a mattress. Also used is some form of covering blanket to insulate the sleeper often bed sheets a quilt or a duvet.

Also some people prefer to dispense with the box spring and bed frame and replace it with a platform bed style. This is more common in Europe Australia and Japan. Contents 1 History 1.1 The Ancient World 1.2 Medieval Europe 1.3 Renaissance and Modern Europe 2 Bed sizes 3 Types of beds 4 Bed frames 5 See also 6 References 7 External links History The Ancient World Tutankhamun's gilded bed from the 14th century BC

Early beds (8000 BC) were little more than piles of straw or some other natural material (e.g. a heap of palm leaves). An important change was raising them off the ground to avoid draughts dirt and pests. Beds found in a preserved village in northern Scotland which were raised boxes made of stone and likely topped with comfortable fillers were dated to between 3200 BC and 2200 BC.2 Given the increased cost though it was only available to the wealthy.3 The Egyptians had high bedsteads which were ascended by steps with bolsters or pillows and curtains to hang round. The elite of Egyptian society such as its pharaohs and queens even had beds made of wood sometimes gilded. Often there was a head-rest as well semi-cylindrical and made of stone wood or metal. Ancient Assyrians Medes and Persians had beds of a similar kind and frequently decorated their furniture with inlays or appliqus of metal mother-of-pearl and ivory.

The oldest account of a bed is probably that of Odysseus: a charpoy4 woven of rope plays a role in the Odyssey. A similar bed can be seen at the St Fagans National History Museum in Wales. Odysseus also gives an account of how he crafted the nuptial bed for himself and Penelope out of an ancient huge olive tree trunk that used to grow on the spot before the bridal chamber was built. His detailed description finally persuades the doubting Penelope that the shipwrecked aged man is indeed her long-lost husband. Homer also mentions the inlaying of the woodwork of beds with gold silver and ivory. The Greek bed had a wooden frame with a board at the head and bands of hide laced across upon which skins were placed. At a later period the bedstead was often veneered with expensive woods; sometimes it was of solid ivory veneered with tortoise-shell and with silver feet; often it was of bronze. The pillows and coverings also became more costly and beautiful; the most celebrated places for their manufacture were Miletus Corinth and Carthage. Folding beds too appear in the vase paintings.

The Roman mattresses were stuffed with reeds hay wool or feathers; the last was used towards the end of the Republic when custom demanded luxury. Small cushions were placed at the head and sometimes at the back. The bedsteads were high and could only be ascended by the help of steps. They were often arranged for two persons and had a board or railing at the back as well as the raised portion at the head. The counterpanes were sometimes very costly generally purple embroidered with figures in gold; and rich hangings fell to the ground masking the front. The bedsteads themselves were often of bronze inlaid with silver and Elagabalus had one of solid silver. In the walls of some of the houses at Pompeii bed niches are found which were probably closed by curtains or sliding partitions. Ancient Romans had various kinds of beds for repose. These included: lectus cubicularis or chamber bed for normal sleeping; lectus genialis the marriage bed it was much decorated and was placed in the atrium opposite the door. lectus discubitorius or table bed on which they atefor they ate while lying on their left sidethere being usually three people to one bed with the middle place accounted the most honorable position; lectus lucubratorius for studying; and a lectus funebris or emortualis on which the dead were carried to the pyre.5 Medieval Europe The ancient Germans lay on the floor on beds of leaves covered with skins or in a kind of shallow chest filled with leaves and moss. In the early Middle Ages they laid carpets on the floor or on a bench against the wall placed upon them mattresses stuffed with feathers wool or hair and used skins as a covering. Curtains were hung from the ceiling or from an iron arm projecting from the wall.6 They appear to have generally lain naked in bed wrapping themselves in the large linen sheets which were stretched over the cushions. In the 13th century luxury increased and bedsteads were made of wood much decorated with inlaid carved and painted ornament. They also used folding beds which served as couches by day and had cushions covered with silk laid upon leather. At night a linen sheet was spread and pillows placed while silk-covered skins served as coverlets. The Carolingian manuscripts show metal bedsteads much higher at the head than at the feet and this shape continued in use until the 13th century in France many cushions being added to raise the body to a sloping position. In the 12th-century manuscripts the bedsteads appear much richer with inlays carving and painting and with embroidered coverlets and mattresses in harmony. Curtains were hung above the bed and a small hanging lamp is often shown. In the 14th century the woodwork became of less importance being generally entirely covered by hangings of rich materials. Silk velvet and even cloth of gold were much used. Inventories from the beginning of the 14th century give details of these hangings lined with fur and richly embroidered. Then it was that the tester bed made its first appearance the tester being slung from the ceiling or fastened to the walls a form which developed later into a room within a room shut in by double curtains sometimes even so as to exclude all drafts. The space between bed and wall was called the ruelle and very intimate friends were received there. The 14th century is also the time when feather beds became highly prized possession.7 In the 15th century beds became very large reaching to 7 or 8 feet by 6 or 7 feet. The mattresses were often filled with pea-shucks straw or feathers. At this time great personages were in the habit of carrying most of their property about with them including beds and bed-hangings and for this reason the bedsteads were for the most part mere frameworks to be covered up; but about the beginning of the 16th century bedsteads were made lighter and more decorative since the lords remained in the same place for longer periods. Renaissance and Modern Europe In the 17th century which has been called "the century of magnificent beds" the style a la duchesse with tester and curtains only at the head replaced the more enclosed beds in France though they lasted much longer in England. Louis XIV had an enormous number of sumptuous beds as many as 413 being described in the inventories of his palaces. Some of them had embroideries enriched with pearls and figures on a silver or golden ground. The great bed at Versailles had crimson velvet curtains on which "The Triumph of Venus" was embroidered. So much gold was used that the velvet scarcely showed. Napoleon I's bed In the 18th century feather pillows were first used as coverings in Germany which in the fashions of the bed and the curious etiquette connected with the bedchamber followed France for the most part. The beds were a la duchesse but in France itself there was great variety both of name and shape. The custom of the "bed of justice" upon which the king of France reclined when he was present in parliament the princes being seated the great officials standing and the lesser officials kneeling was held to denote the royal power even more than the throne. Louis XI is credited with its first use and the custom lasted till the end of the monarchy. In the chambre de parade where the ceremonial bed was placed certain persons such as ambassadors or great lords whom it was desired to honour were received in a more intimate fashion than the crowd of courtiers. At Versailles women received their friends in their beds both before and after childbirth during periods of mourning and even directly after marriage - in fact in any circumstances which were thought deserving of congratulation or condolence. During the 17th century this curious custom became general perhaps to avoid the tiresome details of etiquette. Portable beds were used in high society in France till the end of the Ancien Rgime. The earliest of which mention has been found belonged to Charles the Bold. They had curtains over a light framework and were in their way as fine as the stationary beds. Iron beds appear in the 18th century; the advertisements recommend them as free from the insects which sometimes infested wooden bedsteads. Elsewhere there was also the closed bed with sliding or folding shutters and in England - where beds were commonly quite simple in form - the four poster was the usual citizen's bed until the middle of the 19th century. Bed sizes Main article: Bed size Bed sizes vary considerably around the world with most countries having their own standards and terminology. While the double size appears to be standard among English speaking countries based on the imperial measurement of 4 ft 6 in by 6 ft 3 in (13716 cm x 1905 cm) the sizes for other bed types tend to vary. The mainland European sizes differ not merely because of difference based on use of the metric system. A king-sized bed differs from the other sizes in implementation as it is not common to have a king-sized box spring; rather two smaller box-springs are used under a king-sized mattress. It is a common misconception that on a U.S. standard or eastern king the box springs are identical in size to a twin extra-long; however twin extra-long mattresses next to each other add up to 78 inches wide instead of the 76 inch width that is standard for an eastern king. Also more commonly known as a California King in the United States of America. What is referred to as a "single bed" in many parts of the world is known in U.S. terminology as a "twin bed." In some countries a "twin bed" may also be used to describe one of two single beds in the same room. Types of beds See also: Category:Beds Lit la Polonaise (Polish style bed)8 Royal Castle in Warsaw 18th century. There are many varieties of beds: An adjustable bed is a bed that can be adjusted to a number of different positions An air bed uses an air-inflated mattress(es) sometimes connected to an electric air pump and having variable firmness controls. The portable version of an air bed can also be rolled up and packed so is meant for travel or temporary guest use. A bassinet is a bed specifically for newborn infants. A box-bed is a bed having the form of a large box with wooden roof sides and ends opening in front with two sliding panels or shutters; often used in cottages in Scotland: sometimes also applied to a bed arranged so as to fold up into a box. A brass bed constructed from brass A brass plated bed is a cheap bed of iron a false brass bed with a thin covering of brass which with time peels off and the iron is exposed. A bunk bed is two or more beds one atop the other. A loft bed is similar to a bunk bed except there isn't a lower bunk. This leave space underneath for storage other furniture etc. A captain's bed (also known as a chest bed or cabin bed) is a platform bed with drawers and storage compartments built in underneath. A camp bed (also cot) is a simple temporary portable bed used by armies and large organizations in times of crisis. A canopy bed is similar to a four poster bed but the posts usually extend higher and are adorned or draped with cloth sometimes completely enclosing the bed. A curtained bed is a luxury bed with curtains. A daybed is a couch that is used as a seat by day and as a bed by night. A futon is a traditional style of Japanese bed that is also available in a larger Western style. A four poster bed is a bed with four posts one in each corner that support a tester. A hammock is a piece of suspended fabric. A hideaway bed invented by Sarah E. Goode in response to the needs of apartment-dwellers folds up into another piece of furniture such as a shelf or desk when not in use. A hospital bed is specifically designed to facilitate convalescence traditionally in a hospital or nursing facility but increasingly in other settings such as a private residence. Modern hospital beds commonly have wheels to assist in moderate relocation but they are larger and generally more permanently placed than a gurney. The hospital bed is also a common unit of measurement for the capacity of any type of inpatient medical facility though it is just as common to shorten the term to bed in that usage. An infant bed (also crib or cot) is a small bed specifically for babies and infants. Drawing of a candle-lit mourning bed (Trauergerst) for abbess Franziska Christine von Pfalz-Sulzbach 1776 An iron bed developed in the 1850s is constructed of iron and steel. A kang bed-stove is a Chinese ceramic room heater used as the platform for a bed. A Manjaa is a traditional Punjabi bed made of tied ropes bordered by a wooden frame. A mourning bed (illustration) is a formal canopied bed with the deceased a wax effigy or symbols of rank A Murphy bed or wallbed is a bed that can hinge into a wall or cabinet to save space. A pallet is a thin lightweight mattress. A platform bed is a mattress resting on a solid flat raised surface either free-standing or part of the structure of the room. A roll-away bed (or cot) is a bed whose frame folds in half and rolls in order to be more easily stored and moved. A rope bed is a pre-modern bed whose wooden frame includes crossing rope to support the typically down-filled single mattress. A sofabed is a bed that is stored inside a sofa. A state bed developed in Early Modern Europe from a hieratic canopy of state. A toddler bed is a small bed for young children. A trundle bed or truckle bed is a bed usually stored beneath a twin bed also sometimes referred to as a sleepover bed. A vibrating bed is typically a coin-operated novelty found in a vintage motel. For a fee the mattress vibrates for a duration of time. Alternatively it is a modern bed which vibrates by use of an off-centre motor. It is controlled by electronics for varying time and amplitude settings and is used therapeutically to ease back pains. A waterbed is a mattress full of water. Bed frames Bed frames also called bed steads are made of wood or metal. The frame is made up of head foot and side rails. For heavy duty or larger frames (such as for queen- and king-sized beds) the bed frame also includes a center support rail. These rails are assembled to create a box for the mattress or mattress/box spring to sit on. china style bed Types of bed frames include: platform - typically used without a box spring captain - has drawers beneath the frame to make use of the space between the floor and the bed frame waterbed - a heavy-duty frame built specifically to support the weight of the water in the mattress (Mainly used on larger models) Though not truly parts of a bed frame headboards footboards and bed rails can be included in the definition. Headboards and footboards can be wood or metal. They can be stained painted or covered in fabric or leather. Bed rails are made of wood or metal and are attached to a headboard and footboard. Wooden slats are placed perpendicular to the bed rails to support the mattress/mattress box spring. Bed rails and frames are often attached to the bed post using knock-down fittings.910 A knock-down fitting enables the bed to be easily dismantled for removal. Primary knock-down fittings for bed rails are as follows: Pin-and-hook fastener. A mortise or slot is cut vertically in the bedpost. Pins are inserted horizontally in the bed post so that the pins perpendicularly intersect the mortise. For example if one looked in the mortise one might see part of one horizontal pin at the bottom of the mortise and a part of a second pin toward the top of the mortise. Hooks are installed at the end of the rail. Usually these hooks are part of a plate that is attached to the rail. The hooks then are inserted into the bed post mortise and hook over the pins. Plate-and-hook fastener. Instead of pins inserted horizontally into the bedpost an eye plate (post plate) is installed on the bedpost. The hooks are installed on the rail either as surface mount or recessed. Depending on the hardware the bedpost may require a mortise in order to allow the hooks to fasten to the plate. This is also referred to as a keyhole fastener especially if the connector is more of a "plug" than a "hook". Bed bolts ("through-bolts") are a different means of a knock-down connection. A hole is typically drilled through the bedpost. The bolt head is inset and covered with a plug. In the rail a dowel nut or other type of nut receives the bolt. The springs are made from metal which are swirled for maximum comfort Safety rails11 can be added to the sides of a bed (normally a children's bed) to stop anyone falling out of the sides of the bed. A safety rail is normally a piece of wood that attaches to the side rails on one or both sides of the bed. They are made so that they can be easily removed when no longer required. See also Design portal Bed frame Bed sheet Co-sleeping Headboard (furniture) Mattress Sleep Truck bed References "Box spring". inventors.about.com. http://inventors.about.com/od/bstartinventions/a/bed.htm.  "Skara Brae - The Furniture". orkneyjar.com. http://www.orkneyjar.com/history/skarabrae/furniture.htm.  "Beds throughout history". bettersleep.org. http://www.bettersleep.org/Mattressology/bedinhistory.asp.  "". imagesofafghanistan.com. http://www.imagesofafghanistan.com/images/AsleeponaCharpoy.jpg. dead link  This article incorporates content from the 1728 Cyclopaedia a publication in the public domain. "". History of Science and Technology. http://digicoll.library.wisc.edu/cgi-bin/HistSciTech/HistSciTech-idxtypeturn&entityHistSciTech000900240244&isizeL. dead link "Medieval Furniture & Home Decor". furniturestyles.net. http://www.furniturestyles.net/medieval/. Retrieved 26 November 2010.  "Medieval Furniture & Home Decor". furniturestyles.net. http://www.furniturestyles.net/medieval/. Retrieved 26 November 2010.  (English) "Bed (Lit la Polonaise)". getty.edu. http://www.getty.edu/art/gettyguide/artObjectDetailsartobj7106. Retrieved 2009-01-26.  "Historical Guide: Bed Hardware". whitechapel-ltd.com. http://www.whitechapel-ltd.com/hist/bedhardware.shtml.  "Bed Rail Fastener Options". home-improvement-and-financing.com. http://www.home-improvement-and-financing.com/bed-rail-fastener.html.  "Picture". srbworld.com. http://www.srbworld.com/productimages/SR-1301-GS-V2/1.jpg. Retrieved 26 November 2010.  External links Wikimedia Commons has media related to: Beds Wikimedia Commons has media related to: Mattresses Wikiquote has a collection of quotations related to: Beds Look up bed in Wiktionary the free dictionary. What Size Mattress from The Better Sleep Council v d ePsychophysiology: Sleep and sleep disorders (F51 and G47 307.4 and 327) Sleep stages Rapid eye movement sleep  Non-rapid eye movement sleep  Slow-wave sleep Brain waves Alpha wave  Beta wave  Gamma wave  Delta wave  Theta rhythm  K-complex  Sleep spindle  Sensorimotor rhythm  Mu rhythm Sleep disorders Dyssomnia Insomnia  Narcolepsy  Sleep apnea (Obesity hypoventilation syndrome Ondine's curse)  Hypersomnia  Kleine-Levin syndrome  Sleep state misperception Circadian rhythm sleep disorder Advanced sleep phase syndrome  Delayed sleep phase syndrome  Non-24-hour sleep-wake syndrome  Jet lag Parasomnia Catathrenia  Night terror  Sleepwalking  Somniloquy Other/ungrouped Night eating syndrome  Nocturia  Nocturnal myoclonus  Benign phenomena Dream  Exploding head syndrome  False awakening  Hypnagogia/Sleep onset  Hypnic jerk  Lucid dream  Nightmare  Nocturnal emission  Nocturnal penile tumescence  Sleep paralysis  Somnolence Related topics Bed (Bunk bed Four poster bed Futon Daybed Hammock Mattress Sleeping bag)  Bed bug  Bedding  Bedroom  Bedtime  Bedtime toy  Bedtime story  Caffeine nap  Chronotype  Dream journal  Hypnopompic state  Lullaby  Sleep induction  Microsleep  Nap  Nightwear  Polyphasic sleep  Polysomnography  Power nap  Second wind  Siesta  Sleep and creativity  Sleep and learning  Sleep debt  Sleep deprivation  Sleep diary  Sleep inertia  Sleep medicine  Sleeping while on duty  Sleepover  Snoring  Excessive daytime sleepiness  ("Sleeping sickness" which is not a sleep disorder.) M: PSO/PSI mepr dsrd (o p m p a d s) sysi/epon spvo proc drug(N5A/5B/5C/6A/6B/6D) M: CNS anat(n/s/m/p/4/e/b/d/c/a/f/l/g)/phys/devp noco(m/d/e/h/v/s)/cong/tumr sysi/epon injr proc drug(N1A/2AB/C/3/4/7A/B/C/D)