Oddly, last night was better. Only two short piddleprowls and able to get back to sleep in bed, most refreshed this morning.

I have hated the open window culture ever since school where the dorm windows were kept wide in even the bitterest weather. Also the flitting draught from an open window will keep me awake. Heating is off overnight anyway, at home.

Mattress seem unlikely to be implicated: airbeds are best when only inflated just enough to keep you out of ground contact, but caravan bed is firm foam, and home mattress between the two. Changing pillows seems to make no odds.

Humidity may be plausible.

Going back to my days and nights of Torremolinos where for several years I was well-ish known is NOT likely to result in better sleep, thank you all the same Bonzo!