For hypnotherapists, majority of them would have a recliner to conduct hypnosis for their clients.
Compare to bed, recliner is a better choice because bed is too flat and it may be too comfortable for the client and lull them to fall asleep. Recliner is not totally flat but tilt at certain degree. At a certain angle, it is between normal sitting on a chair and flat lying on the bed.
Besides, if the clinic uses a bed for therapy, client may get the impression that they are in hospital lying on a flat bed.
Recliner can serve as a normal chair when not in use for hypnosis session too.