Folk remedies for insomnia and nightmares have long advised sleep near Drowzee habitats. Today, sleep clinics, psychiactric institutes, and psychological trauma care employ highly-trained Drowzee. Less rigorously, some claim Drowzee can use Belch after successful Dream Eater use.

The pendulum is not only for Hypno’s targets; it also helps it concentrate. Those it ambushes tend to be understandably upset, so it uses the soothing rhythm to help its brain weather the negative feelings.