A great Feng shui bed:

1.Good headboard:

While you are drifting off to sleep, your body is going intro an extra busy energy repair work on many levels. Subconsciously, your head needs good backing, protection and support.

Headboards should be solid and made from wood, or the upholstered ones, as they have a very good combination of solid, but also gentle and supporting Feng shui energy for you and your bedroom. 

2.Good mattress:

 There is a variety of mattresses on the market, choose wisely and invest in the one that will promote best sleep and relaxation. The better you sleep at night, the better your health during the day, this is really simple.
Be mindful of good Feng shui energy and do not buy used mattresses - you never know what energy they have accumulated from previous owners.

3.Good height.:

To allow for a balanced Feng shui energy flow under the bed you need to have your bed at a reasonable height above the floor level. Generally, the beds that have built-in storage drawers underneath to help you with storage solutions are considered bad Feng shui beds.

Why are the beds with built-in storage considered bad Feng shui? Because the energy needs to circulate around your body when you sleep, which is not possible if the space underneath the bed is blocked.