Do you have a history of talking in your dreams?
When this singing usually appears (soon after you fall asleep or in a middle of it)?
Is this happening only at night or also, when you are taking a nap in afternoons?

you may sing in your sleep its completly normal. Others talk in their sleep. And sometimes people sleep walk (I do). And it isnt yet explained. But my answer would be you express your dreams more than the average person. Maybe in your dreams you like to sing, if so then its expressed. I know people that in their dreams they had got mad and someone has woken them up saying they were swearing in their sleep. I hope this helps you.

Hi

Thanks for the reply's.

The singing can start at any point in the night, but it usually happens in the early hours but I can be at anytime. However, once I've been woken, it does not happen again.

I have been known to talk in my sleep, I'm a light snorer but this has all stopped since I've started to serenade my girlfriend in my sleep (she's an musician and doesn't really appreciate my talents )

I don't have afternoon naps or any reoccuring dreams, but when I do dream it can be very vivid.

Life is a bit of a struggle at the moment, I do have a few financial troubles but generally things are fine.

Thanks for your comments catjack, a friend of mine is a loud swearer so it looks like these are linked in some way.

Any more help is apprecited

Just trying to help Its nothing.

I think you'll find next informations helpful.
Sleep talking or somniloquy is often accompanied by muttering or speaking during sleep. There are times when speaking and muttering is accompanied by moaning, singing and shouting.
The causes for this can be anxiety disorder, fever, sleep disorders like obstructive apnea syndrome, sleep walking or REM sleep behavior disorder.

Has you girlfriend noticed that you are choking or gasping during sleep to get air?
Are you loud snoring?
Can you think of sudden awakenings to restart breathing?
Do you usually wake up in a sweat during the night?
Do you feel unrefreshed in the morning after a night’s sleep?
Are you experiencing headaches, sore throat, or dry mouth in the mornings after waking up?
Do you have daytime sleepiness, including falling asleep at inappropriate times, such as during driving or at work?

In a person with REM sleep behavior disorder (RBD), the paralysis that normally occurs during REM sleep is incomplete or absent, allowing the person to "act out" his or her dreams. RBD is characterized by the acting out of dreams that are vivid, intense, and violent. 55% of the cases are with unknown reason, and in 45%, the cause is associated with alcohol or sedative-hypnotic withdrawal.
Are you take some medicines like sleeping pills?

Thanks for taking the time to reply.

Come to think of it, I have woken up a number of times gasping for breath and when I go to drink some water I cannot swallow it down as normal, I should have really mentioned this.

I do also wake up in the early hours and it's not nice, I'm almost in a confused state as if I need to do something (go to the toilet, move to a more comfortable position) and my brain feels awake rather than sleepy. I have been known to sleep talk aswell...

As am I out of work I manage to get some good sleep and I don't often feel tired in the day. I tend to snore loudly after alcohol. I do smoke cannabis and this helps me sleep but I'm no other medication apart from that.

The singing has not happend as much recentley.

You are welcome.

Sleep apnea is a condition in which the airway becomes temporarily blocked during sleep and you'll start to choke or gasp during sleep to get air.
Don't relay on cannabis and other substances to obtain falling asleep easily and good sleep. It'll cause you sleep disturbance later.

Best wishes!
Marija