I used to get this a lot. My method was to:
1. Wear a decent cotton night dress with strappy top. It needs to be thick enough to be absorbent with enough exposed for cooling off when you need to stick bits outside the covers.
2. Heat the room to a consistent temperature and use a light comfortable duvet. Our room was always 16C in the winter, with a 10 tog microfiber duvet. You don't really want a very cold room and a very thick duvet because you will be flipping from being too hot to too cold and since your temperature control is muddled, it does not help. I used to start off too cold (I always have cold extremities), bury myself in the duvet, and wake in a puddle. I found it better to be comfortably warm to start with, then cool down gradually as I fell asleep.
Now, I still prefer a lighter duvet with a woolly blanket over the bottom for my feet, which I can pull up or throw off. Some people like wool duvets but I found them too expensive and it would have needed frequent laundering at the laundry. I could fit my summer duvet (4 tog) in my own washing machine, so used this with blankets for a while. I soaked so much bedding, I liked to be able to wash it all - it got clammy otherwise.
3. Glass of water by the bed. A good way to cool your core temp, and to make up for the sweat lost - if you lose too much, you stop sweating, so cannot cool off so easily.
4. Relaxation exercises. If you move around, your core temp rises and stops you sleeping and this becomes a vicious circle.
5. Sleep on a towel, and always have a clean nighty to hand so you can wipe yourself down and put the dry one on with minimal effort, in the hope of getting back to sleep

I have many times had to get back into a wet bed in the hope of not disturbing my husband who is a dreadful sleeper and the dry stuff helps take the edge off it
