A prostitute.
the person who talks in ones sleep is a Somniloquy.
A person who loves to sleep or a person who has an obsession with bed rest is called a "CLINOMANIAC."
A person who finds it hard to sleep is called an insomniac.
A person who likes to sleep a lot is often referred to as a "slugabed" or simply a "sleep lover."
Necrophilia.
Insomniac
insomnia is what you called a person who is having trouble sleeping or staying asleep
When you can't sleep you might have insomnia so a person who can't sleep might be called an insomniac.
In the UK - we call them an 'out-patient'.
The study of sleep is called polysomnography. It involves monitoring a person's sleep patterns and brain activity to diagnose sleep disorders such as sleep apnea and insomnia.
They are called a debtor, and they are often bankrupt.
A person who has a sleeping problem is called an Insomniac.