Think I'm going to have to see my GP as I always get up on my alarm and rarely sleep in.
Thanks everyone for your suggestions.
Apologies for late reply.
Your GP is a good call assuming he/she is clued up (it is complex) and also assuming you can get to speak to them!!
If you have no history of sleep disorders then this would be considered as an acute episode at this stage and I would be optimistic it is temporary.
The good news is it appears once you do get to sleep it continues until the alarm wakes you and that means there is less chance of there being an underlying medical condition causing it. Your GP is best placed to advise on this as they will also have access to your history and any medication.
It is probable the trigger is something has changed in your life recently, but pinning it down is not always obvious and can be difficult. It could be just a change of routine or raised anxiety about something. This can be minor, but of course once you have issues getting to sleep, this in turn raises anxiety levels about sleep which increases your hyperarousal and you end up in a cycle.
The fact you have started this thread suggest it is worrying you which is understandable.
I had never had any real problems with sleep until some years ago a complex set of circumstances all came together at the same time including an unusual reaction to an OTC medication, resulting in my sleep deteriorating rapidly. At one point I had no sleep at all for over two months. Fortunately I had at that point retired.
Best wishes
