john hamilton wrote:
A mosquito has been in our bedroom for about a week, biting regularly
at night; when we are fast asleep, in the early hours. We have some
immovable cupboards etc, that are ideal for it to hide behind.

Is there any way to entice it out, so we can deal with it?

Try one of those bug bombs that they sell. Some just need water added and
then you set them down and vacate the premises for the required time
(usually stated on the package). This will also take care of many other
pests also.
Buffalo