Bed

Beds allow the player to skip to the next dawn. In SMP, this will only happen when all players sleep, or when only one is online. Beds were added in Beta 1.3. In Beta 1.4 update, the last bed the player slept will serve as the player's respawn point the next time they die, as long as it still exists. Beds cannot be destroyed by fire. In 1.4 the respawn feature did not work correctly, but Notch fixed this in the 1.4_01 update.

Placement
Beds, unlike typical blocks, take up two blocks of space. Basic placement requires at least this much space away from the player's facing direction. Like some other blocks, beds can not be placed on snow but can be placed on leaves. It is also possible to create a "floating bed" if the blocks underneath the bed are destroyed. This method can also be used to place glass underneath the bed, as the bed can't be placed normally on glass. The floating bed method also allows beds placed over each other like with fences. When placed, the foot will face toward the user. Two or more beds can be placed next to each other, effectively allowing double beds.

Beds cannot be placed underwater. They can be placed in a dry area and then flooded, but trying to use one will result in the "You can only sleep at night" message being displayed. In order for the bed to be useful, it must have enough light on and around it to prevent hostile mob attacks during sleep.

Beds are 9/16 of a block high, one more pixel than half a block. This prevents you from walking onto the bed from ground level without jumping, but allows you to walk onto other blocks from the bed.

Behavior
Use a bed by right clicking on it. Attempting to use it during the day will result in a "You can only sleep at night." message, which also appears when attempting to use beds in the Nether, or when you attempt to use a bed from a distance. When used, the player is positioned in the bed and their view slowly fades to gray. After this transition, the player wakes up at dawn.

To ensure that you are not awakened unnecessarily during the night, the bed must not be placed along a 1 block thick wall, unless the area on the other side of the wall is also safe. If a hostile mob can get within 2 blocks of the bed, even if the blocks are separated by a wall, you will be awakened with the hostile mob standing next to you. There appears to be a slight delay before the mob attacks you, giving you time to get the first blow.

Sleeping only changes the time of day to sunrise; it does not speed up processes which take place over time such as the decay of dropped items, plant growth, and smelting.

Multiplayer
To skip the night, all players on the server must be in bed at the same time. Players can also chat while in bed, and have the option to leave the bed before the skip happens.

If you try to sleep in a bed occupied by another player, you will get the message "This bed is occupied."

In order to change your respawn point in multiplayer, you must click the Leave Bed button before falling asleep. Sleeping all the way through the night will not change your respawn point.

Sometimes, as you are about to sleep, hostile Mobs will spawn around you (creepers and spiders are yet to be seen doing this) and will attack you, regardless of the level of light around you. If this does start to happen however, do not attempt to return to bed, as it will continue to occur. To fix, make sure you can see the entire room from the bed, and you have no holes in your walls.[Citation Needed]

Crafting
''Note: You can use any colored wool. You can even use multiple colors of wool, but the bed will remain red.''

Bugs

 * If you try to place a bed above the height limit for the map, it will be lost from your inventory.
 * Hitting the bed will cause the top surface to brighten. This does not affect the light level, and it is probably a glitch in the breaking animation.
 * Many situations cause a “You can only sleep at night.” message, even if it is nighttime. These have been reported to include:
 * The bed being surrounded on all sides by blocks, or water.
 * Right-clicking on the foot instead of the head of the bed.
 * Right-clicking any part of the bed while standing more than three blocks away.
 * Right-clicking the bed while standing on top of it.
 * A bed inside of a cave with many torches around it.
 * The bed seems to only force the camera to be in the bed; while the screen is fading out, you can still move around, break/place blocks, fire arrows, etc., but cannot see where you are or see your arm/tool. This has been called “sleepwalking.”
 * Moving the mouse around will cause particles on the screen to face different directions. This is because they are sprites, images that attempt to face the player's eyes (which aren't actually at that location) to avoid being seen edge-on.
 * In multiplayer, many situations can cause you to be kicked from the server for an “Illegal stance”:
 * Going to bed while sneaking.
 * Going to bed right between sunrise and day.
 * Being pushed off the bed into a block. (This will sometimes kick the pusher as well.)
 * There is a glitch in SMP where, if you switch from two beds rapidly (possibly due to connection), you can enter one bed and leave to appear near a different bed.
 * Using a bed in a room with a low ceiling can result in the player waking up with their head stuck, causing them to suffocate unless they can escape, which is likely after sneaking while using a bed.
 * In SMP, if a player gets into a bed and then another player surrounds the bed with a solid material (e.g. cobblestone), the first player will be stuck in a laying down position upon attempting to get out of the bed.
 * When a user right-clicks quickly enough in Single Player, the message "This bed is occupied" will appear on the screen. This was the third message that could be seen in Minecraft Single Player Mode and it can even be displayed twice if the user right-clicked fast enough.
 * Saving in a bed and then continuing that saved game causes the player to fall through the floor and makes the bed "occupied." This can be fixed by destroying and then replacing the bed.
 * Sometimes if you place a bed next to a wall, it will spawn you on the other side of the wall.
 * If you sneak while in bed, you can see your head while sleeping.