Thought I'd do it again before breakfast (as it's now just over 12 hours since ate) and it has come down to 5.3
Disturbed sleep las tnight, fell asleep on some cushions on the floor with the window open and a duvet cover sheet over me (Mrs. upstairs with the dreaded lurgy so am keeping away) and woke up shaking (was -1 degrees) had to put the heating on for a bit and find a load of other covers, managed to sleep for a bit after that. Probably stressed the body, will prepare better tonight.