what direction should i put my bed

What year were you born and are you male or female and were you born before February 4 in that year?  This information is critical to find your ba gua.

Soul...

From all that I have gathered there are a few helpful hints about bed positioning. It should NEVER be under a window, And should always be "facing" the entry door of the room. In other words, the headboard should be against the wall, with the foot of the bed closer toward the door.

Hope that helps...
Mystic

Never say never or always, because sometimes the situation is beyond your control, but...

1) Avoid having your bed under or next to any opening where there is a strong flow of chi (i.e. a window or a door; especially a bathroom door).  Chi should not cross your bed, whether that is your feet or body or head.  You probably have had your mother tell you to keep your head and feet covered to stay warm in the winter; same principle.

2) Avoid sleeping with your head facing one of your harmful directions according to your kua.  Ideally your head should face the direction that is best for rest. (Without a ton of explanation, The Idiot's Guide to Feng Shui is a great book to help beginners figure out their kua and directions.)

3) The head board of your bed should be solid (no slats) and should rest solidly against a wall.  Do not leave an empty space between your head board and the wall, for example by putting your bed in the middle of the room or having it face a corner on an angle.

4) Try to keep your bedroom dimly lit most of the time, even when you are not in it.  Bedrooms are meant to be kept towards the rear of the house, away from the hustle and bustle of the outside world.  

5)  Vibrant colours (reds, yellows, oranges, fluorescent greens) in the bedroom are not really suitable to encourage a restful sleep.  The same goes for white lights, such as fluorescent bulbs.

Good luck!

1. an important consideration with bedroom arrangement is make sure you have your head supported by a solid wall directly behind you, if your best direction is south, do not have your bed at an angle in the room with your head behind a corner of wall or cupboard

2. Try not to sleep with a beam or overhead cupboards over your head, if you have these you can place a piece of cloth under the beam so it takes away the negative effect or hang a crystal faceted sphere or a pair of bamboo flutes

3. Do not sleep with your feet facing towards a door, this is known as the 'coffin position' and speaks for itself.

4. Do not sleep with doors (entrance not wardrobe doors) on either side of a bed; this is pretty rare, as we do not see many homes with more than one entrance door in a bedroom.

5. A command position for your bed room in Feng Shui means that you face the door from the far side of the room but are not directly in front of the door. The part of the room diagonally farthest from the entry offers the best Command Position for your bed, it is this position, you are able to benefit from the Chi that enters and flows through the space, while being far enough removed from the doorway that you are not exposed to Chi that is too strong.

6. Sleeping in line with the door also exposes you to excessive Chi, which can contribute to stress, irritability and health problems, but keeping your bed in commanding position prevents you from negative influences and puts you in control of your space and of your life.

All these are taken randomly from websites which i have read and i heavily suggest you do some search in the internet or consult a proper fengshui master : )