The guys over at Rock, Paper, Shotgun
have the word direct from Notch that the next update will be on Tuesday (closer to Wednesday for us Aussies I gather).
It will include BEDS. They'll work by letting you skip the night if you use one (single player only obviously). A later update will also introduce the effect that by using a bed your (presumably personal) spawn point will change to that location.
We'll have to wait an see whether the promised
native whitelist, game launcher and new half sized blocks also make it into Tuesday's update, or a later one before GDC.
Expect the servers to be down for a while on Tuesday/Wednesday until we can either get the regular worlds back up or switch over to the test worlds. Either way mod provided functionality will likely be limited initially and the whitelist may or may not be in effect.