Is it possilbe to force the time to sleep when the player activates a particular bed so that I can controll the time spent sleeping ?

Since is in a ship ad I use the bed to change stages I want also to be able to control the time that the player spends sleeping ... also how can I do to remove the message you feel rested and similar I want the player not get the bonus if possible for good sleep ....

There is a bool function for on "sleep stop" which is TRUE if the sleep is interrupted so there must be a quest link or script link there somewhere...
http://www.creationkit.com/OnSleepStop_-_Form

Not sure about the 2nd question may be a vanilla script attached to beds?

no because I wat the bed to work normally otherwise ...