Sleeping pills have long been prescribed throughout the world.
It is known that many of these sleeping pills have side effects such as tolerance and dependence.
In some instances there can be odd effects.
In Britain alone such pills are prescribed almost three-quarters of a million times per year.
There is now a link with odd and bizarre side effects including overeating and sleep walking.
Not all sleeping pills appear to be implicated.
The main one is called Zolpidem (Stilnoct).
There appears to be many instances of bizarre behavior by those who have been taking it.
Some patients had gained several pounds in weight of unknown origin.
In one case, it was only when the patient was found eating in the middle of the night in front of her fridge while she was still fast asleep that the cause was known.
Other patients have woken whilst taking food from the kitchen and others have had other things in their hands such as paint brushes whilst painting the door whilst asleep.
Worryingly there have also been at least two times when patients have been found driving after taking the drug and whilst asleep.
Other reported side effects include reports of hallucinations and amnesia.
The drug, along with others like it, is only licensed for use for a short time.
However, when patients find that they get benefit from using the drug it is often hard to get them off of it.
Warnings do appear inside the packets of the drugs warning of these side effects and other problems.